browser index.js;minor doc change

Author: nikithauc

docs/TokenCredentialAuthenticationProvider.md

@@ -67,6 +67,6 @@ The browser use of the file is as follows:
 var authProvider = new MicrosoftGraph.TokenCredentialAuthProvider.TokenCredentialAuthenticationProvider(tokenCred, { scopes: scopes });
 
 client = MicrosoftGraph.Client.initWithMiddleware({
-	authProvider: auth,
+	authProvider: authProvider,
 });
 ```

src/browser/rollupEntry.ts

@@ -7,9 +7,9 @@
 /**
  * The purpose of this file is to export from src/browser/index.ts
  * and the src/browser/ImplicitMSALAuthenticationProvider.
- * No separate rollup entry point is added for ImplicitMSALAuthenticationProvider as it is deprecated.
+ * No separate rollup entry point and bundled file is added for ImplicitMSALAuthenticationProvider as it is deprecated.
  * After the ImplicitMSALAuthenticationProvider feature is removed,
- * the entry point for rollup should point to src/browser/index.ts/.
+ * the entry point for rollup should point to src/browser/index.ts.
  */
 export * from "./index";
 export * from "./ImplicitMSALAuthenticationProvider";