Editorial: Fix some incorrect capitalization, and make sections less shouty (#320)

Non-normative.

Fix a couple incorrect capitalization instances
Make section titles consistently "Sentence case" instead of "Title Case"

Author: inexorabletash

index.bs

@@ -433,7 +433,7 @@ which is either null or an [=/upgrade transaction=], and is initially null.
 </div>
 
 <!-- ============================================================ -->
-### Database Connection ### {#database-connection}
+### Database connection ### {#database-connection}
 <!-- ============================================================ -->
 
 Script does not interact with [=databases=] directly. Instead,
@@ -501,7 +501,7 @@ to allow the upgrade or delete to proceed.
 
 
 <!-- ============================================================ -->
-## Object Store ## {#object-store-construct}
+## Object store ## {#object-store-construct}
 <!-- ============================================================ -->
 
 An <dfn>object store</dfn> is the primary storage mechanism for
@@ -544,7 +544,7 @@ one of three sources:
 </div>
 
 <!-- ============================================================ -->
-### Object Store Handle ### {#object-store-handle-construct}
+### Object store handle ### {#object-store-handle-construct}
 <!-- ============================================================ -->
 
 Script does not interact with [=/object stores=] directly. Instead,
@@ -737,7 +737,7 @@ of running [=compare two keys=] with |a| and |b| is 0.
 
 
 <!-- ============================================================ -->
-## Key Path ## {#key-path-construct}
+## Key path ## {#key-path-construct}
 <!-- ============================================================ -->
 
 A <dfn>key path</dfn> is a string or list of strings
@@ -857,7 +857,7 @@ one [=object-store/record=] is added to the index for each of the [=subkeys=].
 </div>
 
 <!-- ============================================================ -->
-### Index Handle ### {#index-handle-construct}
+### Index handle ### {#index-handle-construct}
 <!-- ============================================================ -->
 
 Script does not interact with [=/indexes=] directly. Instead, within
@@ -885,7 +885,7 @@ an [=/upgrade transaction=] is running.
 ## Transactions ## {#transaction-construct}
 <!-- ============================================================ -->
 
-A <dfn id=transaction-concept>Transaction</dfn> is used to interact
+A <dfn id=transaction-concept>transaction</dfn> is used to interact
 with the data in a [=database=]. Whenever data is read or written
 to the database it is done by using a [=/transaction=].
 
@@ -973,7 +973,7 @@ A <dfn>read/write transaction</dfn>
 is a [=/transaction=] with [=transaction/mode=] {{"readwrite"}}.
 
 <!-- ============================================================ -->
-### Transaction Lifecycle ### {#transaction-lifecycle}
+### Transaction lifecycle ### {#transaction-lifecycle}
 <!-- ============================================================ -->
 
 A [=/transaction=] has a <dfn>state</dfn>, which is one
@@ -1124,7 +1124,7 @@ They will return true if any transactions were cleaned up, or false otherwise.
 </aside>
 
 <!-- ============================================================ -->
-### Transaction Scheduling ### {#transaction-scheduling}
+### Transaction scheduling ### {#transaction-scheduling}
 <!-- ============================================================ -->
 
 An event with type <dfn event>`complete`</dfn> is fired at
@@ -1206,7 +1206,7 @@ The following constraints define when a [=/transaction=] can be
 
 
 <!-- ============================================================ -->
-### Upgrade Transactions ### {#upgrade-transaction-construct}
+### Upgrade transactions ### {#upgrade-transaction-construct}
 <!-- ============================================================ -->
 
 An <dfn>upgrade transaction</dfn> is a [=/transaction=] with [=transaction/mode=]
@@ -1298,7 +1298,7 @@ A [=/request=]'s [=get the parent=] algorithm returns the request's
 </aside>
 
 <!-- ============================================================ -->
-### Open Requests ### {#open-requests}
+### Open requests ### {#open-requests}
 <!-- ============================================================ -->
 
 An <dfn>open request</dfn> is a special type of [=/request=] used
@@ -1336,7 +1336,7 @@ further requests to be processed.
 </div>
 
 <!-- ============================================================ -->
-## Key Range ## {#range-construct}
+## Key range ## {#range-construct}
 <!-- ============================================================ -->
 
 Records can be retrieved from [=/object stores=] and [=/indexes=]
@@ -1532,7 +1532,7 @@ whether the cursor's [=cursor/value=] is exposed via the API.
 </div>
 
 <!-- ============================================================ -->
-## Key Generators ## {#key-generator-construct}
+## Key generators ## {#key-generator-construct}
 <!-- ============================================================ -->
 
 When a [=/object store=] is created it can be specified to use a
@@ -4810,7 +4810,7 @@ the contents of the database.
 ## The {{IDBTransaction}} interface ## {#transaction}
 <!-- ============================================================ -->
 
-[=/transaction=] objects implement the following interface:
+[=/Transaction=] objects implement the following interface:
 
 <xmp class=idl>
 [Exposed=(Window,Worker)]
@@ -5699,7 +5699,7 @@ a request=].
 </aside>
 
 <!-- ============================================================ -->
-## Object Store Storage Operation ## {#object-store-storage-operation}
+## Object store storage operation ## {#object-store-storage-operation}
 <!-- ============================================================ -->
 
 <div class=algorithm>
@@ -5805,7 +5805,7 @@ To <dfn>store a record into an object store</dfn> with
 
 
 <!-- ============================================================ -->
-## Object Store Retrieval Operations ## {#object-store-retrieval-operation}
+## Object store retrieval operations ## {#object-store-retrieval-operation}
 <!-- ============================================================ -->
 
 <div class=algorithm>
@@ -5892,7 +5892,7 @@ with |store|, |range| and optional |count|, run these steps:
 
 
 <!-- ============================================================ -->
-## Index Retrieval Operations ## {#index-retrieval-operation}
+## Index retrieval operations ## {#index-retrieval-operation}
 <!-- ============================================================ -->
 
 <div class=algorithm>
@@ -5979,7 +5979,7 @@ To <dfn>retrieve multiple values from an index</dfn> with
 
 
 <!-- ============================================================ -->
-## Object Store Deletion Operation ## {#object-store-deletion-operation}
+## Object store deletion operation ## {#object-store-deletion-operation}
 <!-- ============================================================ -->
 
 <div class=algorithm>
@@ -6001,7 +6001,7 @@ with |store| and |range|, run these steps:
 
 
 <!-- ============================================================ -->
-## Record Counting Operation ## {#record-counting-operation}
+## Record counting operation ## {#record-counting-operation}
 <!-- ============================================================ -->
 
 <div class=algorithm>
@@ -6018,7 +6018,7 @@ To <dfn>count the records in a range</dfn> with |source| and
 
 
 <!-- ============================================================ -->
-## Object Store Clear Operation ## {#object-store-clear-operation}
+## Object store clear operation ## {#object-store-clear-operation}
 <!-- ============================================================ -->
 
 <div class=algorithm>
@@ -6036,7 +6036,7 @@ To <dfn>clear an object store</dfn> with |store|, run these steps:
 
 
 <!-- ============================================================ -->
-## Cursor Iteration Operation ## {#cursor-iteration-operation}
+## Cursor iteration operation ## {#cursor-iteration-operation}
 <!-- ============================================================ -->
 
 <div class=algorithm>
@@ -6642,7 +6642,7 @@ steps may throw an exception.
 
 
 <!-- ============================================================ -->
-# Privacy Considerations # {#privacy}
+# Privacy considerations # {#privacy}
 <!-- ============================================================ -->
 
 *This section is non-normative.*
@@ -6755,7 +6755,7 @@ it is promptly deleted from the underlying storage.
 
 
 <!-- ============================================================ -->
-# Security Considerations # {#security}
+# Security considerations # {#security}
 <!-- ============================================================ -->
 
 ## DNS spoofing attacks ## {#dns-spoofing-attacks}
@@ -6845,7 +6845,7 @@ format, and to reconstruct any internal state from script-visible
 state when older data is encountered.
 
 <!-- ============================================================ -->
-# Revision History # {#revision-history}
+# Revision history # {#revision-history}
 <!-- ============================================================ -->
 
 *This section is non-normative.*