Fixed grammatical errors (#33112)

guide/english/react/hello-world/index.md

@@ -3,7 +3,7 @@ title: Hello World
 ---
 ## Hello World !!
 
-Every language learning starts with Traditional Hello World example. Here, you get introduced to React with the same HelloWorld program.
+Every language learning starts with a traditional Hello World example. Here, you get introduced to React with the same Hello World program.
 
 Everything in React is a component. 
 
@@ -62,8 +62,8 @@ document.getElementById('root'));  //The <App /> is the way components are calle
 
 ```
 
-In the above, App.js is called a component. Normally, we make multiple components and put them together in App.js which will be then rendered in index.js which is then rendered into the root div that is in the index.html.
+In the above, App.js is called a component. Normally, we make multiple components and put them together in App.js, which will then be rendered in index.js, and finally, into the root div in index.html.
 
-Congrats!! You have created your first React Hello world app. You will learn more about React in the coming articles.
+Congrats!! You have created your first React Hello World app. You can learn more about React in the other React Guide articles.
 
 Happy Coding!!