fix: add requirement in the includeAutomaticOptionalChainCompletions description (#1533)

Author: ivanwonder

package.json

@@ -117,7 +117,7 @@
         "angular.suggest.includeAutomaticOptionalChainCompletions": {
           "type": "boolean",
           "default": true,
-          "description": "Enable/disable showing completions on potentially undefined values that insert an optional chain call. Requires TS 3.7+ and strict null checks to be enabled."
+          "markdownDescription": "Enable/disable showing completions on potentially undefined values that insert an optional chain call. Requires TS 3.7+, strict null checks to be enabled and the `legacy View Engine` option to be disabled."
         },
         "angular.suggest.includeCompletionsWithSnippetText": {
           "type": "boolean",