Clarify runtimes on CE and EE (#1369)

Author: JPryce-Aklundh

modules/ROOT/pages/introduction/cypher-neo4j.adoc

@@ -39,6 +39,14 @@ xref::constraints/managing-constraints.adoc#create-key-constraints[node and rela
 a|
 Only xref::constraints/managing-constraints.adoc#create-property-uniqueness-constraints[node and relationship property uniqueness constraints].
 
+| Runtimes
+a|
+All runtimes:
+xref::planning-and-tuning/runtimes/concepts.adoc#runtimes-slotted-runtime[slotted runtime], xref::planning-and-tuning/runtimes/concepts.adoc#runtimes-pipelined-runtime[pipelined runtime] (default), xref::planning-and-tuning/runtimes/concepts.adoc#runtimes-parallel-runtime[parallel runtime].
+
+a|
+Only xref::planning-and-tuning/runtimes/concepts.adoc#runtimes-slotted-runtime[slotted runtime].
+
 |===
 
 [NOTE]

modules/ROOT/pages/planning-and-tuning/runtimes/concepts.adoc

@@ -140,17 +140,13 @@ This is because the process of individual rows being pulled from different opera
 [[runtimes-pipelined-runtime]]
 == Pipelined runtime
 
-The pipelined runtime is the default runtime for Neo4j Enterprise Edition.
-This means that unless users of Neo4j Enterprise Edition specify a different runtime, queries will be run using the pipelined runtime.
-
-To specify that a query should use the pipelined runtime, prepend the query with `CYPHER runtime = pipelined`.
-For example:
+The pipelined runtime is the default runtime for Neo4j Enterprise Edition and all tiers of link:{neo4j-docs-base-uri}/aura/[Aura].
+This means that unless users of Neo4j Aura or Enterprise Edition specify a different runtime, queries will be run using the pipelined runtime.
 
 .Query
 [source, cypher]
 ----
 EXPLAIN
-CYPHER runtime = pipelined
 MATCH (:Station { name: 'Denmark Hill' })<-[:CALLS_AT]-(d:Stop) 
       ((:Stop)-[:NEXT]->(:Stop))+
       (a:Stop)-[:CALLS_AT]->(:Station { name: 'Clapham Junction' })