Apply suggestions from code review

Author: phillco

packages/common/src/scopeSupportFacets/scopeSupportFacetInfos.ts

@@ -722,15 +722,15 @@ export const scopeSupportFacetInfos: Record<
     scopeType: { type: "interior" },
   },
   "interior.element": {
-    description: "The interior/children of an xml element",
+    description: "The interior/children of an XML element",
     scopeType: { type: "interior" },
   },
   "interior.command": {
     description: "The body of a Talon command",
     scopeType: { type: "interior" },
   },
   "interior.cell": {
-    description: "The body of code cell in markdown",
+    description: "The body of a code cell in markdown",
     scopeType: { type: "interior" },
   },