Allow parsing of 'beta' DeclarationReference when parsing a DocDeclarationReference

Author: rbuckton

common/changes/@microsoft/tsdoc/parse-beta-declref_2022-05-16-07-04.json

@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/tsdoc",
+      "comment": "parse beta DeclarationReference in TSDoc",
+      "type": "minor"
+    }
+  ],
+  "packageName": "@microsoft/tsdoc",
+  "email": "[email protected]"
+}