improve external module section

Author: Hannes7eicher

content/micropython-course/course/01.introduction-python/02.intro-to-micropython.md

@@ -146,17 +146,19 @@ For example, to use a module for a specific sensor, we need to install it **exte
 
 ### Install External Modules
 
-To install an external module, we are going to use a package manager called `mip`. With `mip`, we can install a module on the board by connecting to Wi-Fi® and downloading the module directly to the board. So how do we do this?
+To install an external module, we are going to use a package manager called `mip`. With `mip`, we can install a module on the board by connecting to Wi-Fi® and downloading the module directly to the board. Installing external modules is done in two steps:
 
-To download external modules from the internet we first a foremost need a working internet connection. To connect to your local Wi-Fi you can upload the following script to your `boot.py` file. Why `boot.py`? 
+1. Establish a Wi-Fi connection.
 
-Because we want to make sure our board connects to the internet as soon as it boots up.
+2. Download the module from a specific URL using `mip`.
 
-***Please note that you need to add your own Wi-Fi network and password in the `WIFI_NETWORK` and `WIFI_PASSWORD` fields.***
+To connect to your local Wi-Fi you can upload the following script to `boot.py` file. We choose `boot.py` because we want to make sure our board connects to the internet as soon as it boots up.
+
+**Connect to Wi-Fi**
 
 ![Wi-Fi script inside boot.py](./assets/boot.png)
 
-**Connect to Wi-Fi**
+***Please note that you need to add your own Wi-Fi network and password in the `WIFI_NETWORK` and `WIFI_PASSWORD` fields.***
 
 ```python
 """
@@ -179,11 +181,12 @@ print("Connected to ",WIFI_NETWORK)
 
  ![Successful connection](./assets/wifiConnected.png)
 
- Next, you need to run a script that installs the external module from a specific url. Place the following script inside `main.py` and press run.
+ **Install external modules**
+
+ Next, you need to run a script that installs the external module from a specific URL. Upload the following script to `main.py`.
 
 ![Module installation script inside main.py](./assets/main.png)
 
-**Install external module**
 ```python
 '''
 This script installs external modules using mip