Apply suggestions from @maria-robobug review

Co-authored-by: Maria Shodunke <maria-robobug@users.noreply.github.com>

_code-samples/build-a-desktop-wallet/js/0-hello/index.js

@@ -5,7 +5,7 @@ const path = require('path')
 /**
  * Main function: create application window, preload the code to communicate
  * between the renderer Process and the main Process, load a layout,
- * and perform the main logic
+ * and perform the main logic.
  */
 const createWindow = () => {
     // Create the application window

_code-samples/build-a-desktop-wallet/js/1-ledger-index/index.js

@@ -28,7 +28,7 @@ const getValidatedLedgerIndex = async () => {
 /**
  * Main function: create application window, preload the code to communicate
  * between the renderer Process and the main Process, load a layout,
- * and perform the main logic
+ * and perform the main logic.
  */
 const createWindow = () => {
     // Create the application window

_code-samples/build-a-desktop-wallet/js/2-async/index.js

@@ -27,7 +27,7 @@ const createWindow = () => {
 // Step 2 changes - main whenReady function - start
 /**
  * Create an XRPL client, subscribe to 'ledger' events, and broadcast those by
- * dispatching an 'update-ledger-data' event to the frontend
+ * dispatching an 'update-ledger-data' event to the frontend.
  *
  * @returns {Promise<void>}
  */

docs/tutorials/javascript/build-apps/build-a-desktop-wallet-in-javascript.md

@@ -22,7 +22,7 @@ You can find the complete source code for all of this tutorial's examples in the
 
 ## Rationale
 
-This tutorial will take you through the process of creating a XRP Wallet application from scratch. It begins with a "Hello World"-like example with minimal functionality, and adds more features in each step.
+This tutorial takes you through the process of creating an XRP Wallet application from scratch. It begins with a "Hello World"-like example with minimal functionality, and adds more features in each step.
 
 ## Goals