Update README.md

Author: josemoracard

.learn/exercises/03.3-your-first-route/README.md

@@ -1,30 +1,30 @@
 # `03.3` Creating Your First Endpoint (route)
 
-Since Flask is a server, it only makes sense to add some URLs to expose over the internet, for example: mydomain.com/hello
+Since Flask is a server, it only makes sense to add some URLs to expose over the internet, for example: `mydomain.com/hello`
 
-As a developer, if we would like people to visit `http://mydomain.com/hello` and show a message like `Hello World` to those people, we have to add the following endpoint inside our app.py file:
+As a developer, if we would like people to visit `http://mydomain.com/hello` and show a message like `Hello World` to those people, we have to add the following endpoint inside our `app.py` file:
 
 ```python
 @app.route('/myroute', methods=['GET'])
 def hello_world():
-    return 'Hello, World!'
+    return 'Hello World!'
 ```
 
-+ The first part, `@app.route('/myroute')`, specifies the enpoint that will be available to our users. In this case, users would see `mydomain.com/myroute` when visiting this route.
++ The first part, `@app.route('/myroute')`, specifies the endpoint that will be available to our users. In this case, users would see `mydomain.com/myroute` when visiting this route.
 
 + The first line also specifies the methods that will be used with that URL. In this case, the `GET` method (for reading data).
 
-+ The second line defines a function that will be called by Flask when that endpoint is called by the user (when the user requests `/blabla`).
++ The second line defines a function that will be called by Flask when that endpoint is called by the user (when the user requests `/myroute`).
 
-+ The third line defines our function execution and in this case, returns the text "Hello World" to the requesting client or browser.
++ The third line defines our function execution and in this case, returns the text "Hello World!" to the requesting client or browser.
 
-## 📝Instructions:
+## 📝 Instructions:
 
 1. Using that knowledge, make your server return the string `"<h1>Hello!</h1>"` when the URL `/todos` is typed on the browser.
 
 2. Please make sure that these two lines stay at the bottom of your `app.py` file. All routing and functions must remain above these two lines.
 
 ```python
 if __name__ == '__main__':
-  app.run(host='0.0.0.0', port=3245, debug=True)
+    app.run(host='0.0.0.0', port=3245, debug=True)
 ```