chore: add sourcing info for markupSnippets

Author: devvaannsh

src/extensions/default/CSSCodeHints/unittests.js

@@ -256,15 +256,6 @@ define(function (require, exports, module) {
                 testDocument = null;
             });
 
-            it("should expand m0 to margin: 0; when Emmet hint is used", function () {
-                testDocument.replaceRange("m0", { line: 6, ch: 2 });
-                testEditor.setCursorPos({ line: 6, ch: 4 });
-
-                selectHint(CSSCodeHints.cssPropHintProvider, "margin: 0;");
-                expect(testDocument.getLine(6)).toBe(" margin: 0;");
-            });
-
-
             it("should insert colon prop-name selected", function () {
                 // insert semicolon after previous rule to avoid incorrect tokenizing
                 testDocument.replaceRange(";", { line: 6, ch: 2 });

src/extensionsIntegrated/Emmet/emmet-snippets.js

@@ -28,6 +28,8 @@
  * 1. **markupSnippets**: An object that maps abbreviation keys to their expanded HTML markup.
  *    These are all the abbreviations that can be expanded into something other than the usual tags.
  *    When an abbreviation matching one of the markup snippets is passed to Emmet, it knows how to expand it.
+ *  These are sourced from `thirdparty/emmet.es.js`. To update this in future, refer to that file.
+ *
  *
  * 2. **htmlTags**: An array of standard HTML tags that are expanded by default.
  *    This list helps determine whether an abbreviation corresponds to a valid HTML element.