Update directory-structure.md: clarify service, service group, uniform versioning. (Azure#28929)

Author: Konrad Jamrozik

.markdownlint.jsonc

@@ -31,5 +31,10 @@
     // https://github.com/DavidAnson/markdownlint/blob/main/doc/md034.md
     //
     // We allow bare URLs e.g. to link to GitHub issues.
-    "MD034": false
+    "MD034": false,
+
+    // MD041 - First line in a file should be a top-level heading
+    //
+    // We sometimes use "short link" table as first line.
+    "MD041": false
 }

cSpell.json

@@ -3,6 +3,8 @@
     "language": "en",
     "words": [
         "authnotrequired",
+        "azsdk",
+        "confidentialledger",
         "Creds",
         "fixdate",
         "frontends",
@@ -878,7 +880,6 @@
                 "unittype"
             ]
         },
-
         {
             "filename": "**/specification/maps/data-plane/Microsoft.Maps/Render/preview/1.0/render.json",
             "words": [
@@ -1191,7 +1192,6 @@
                 "containerd"
             ]
         },
-
         {
             "filename": "**/specification/batch/data-plane/Microsoft.Batch/**/*.json",
             "words": [
@@ -1266,10 +1266,10 @@
         {
             "filename": "**/specification/riskiq/data-plane/Microsoft.Easm/preview/2024-03-01-preview/easm.json",
             "words": [
-                 "Cisa",
-                 "cisa",
-                 "affected",
-                 "AUTOCONFIRMED"
+                "Cisa",
+                "cisa",
+                "affected",
+                "AUTOCONFIRMED"
             ]
         },
         {