address remarks: fix typo

eng/tools/specs-model/tsconfig.json

@@ -10,7 +10,7 @@
     "lib": ["ES2022"],
 
     // checkJS is set to true by [strictest] but we need to disable it to avoid this [build failure].
-    // We don't need it anyway, as all sources are in .js except the 3-line cmd entry-point.
+    // We don't need it anyway, as all sources are in .ts except the 3-line cmd entry-point.
     // https://www.typescriptlang.org/tsconfig/#checkJs
     "checkJs": false
   }
@@ -19,4 +19,3 @@
 // [strictest]: https://www.npmjs.com/package/@tsconfig/strictest from [tsconfig bases]
 // [tsconfig bases]: https://github.com/tsconfig/bases#centralized-recommendations-for-tsconfig-bases from https://www.typescriptlang.org/tsconfig#target
 // [build failure]: https://stackoverflow.com/questions/42609768/typescript-error-cannot-write-file-because-it-would-overwrite-input-file
-