Improve description texts for addons

Author: tsterbak

openandroidinstaller/views/install_view.py

@@ -107,13 +107,16 @@ def check_addons_switch(e):
 Connect your device with your computer with the USB-Cable. This step will format your phone and wipe all the data.
 It will also remove encryption and delete all files stored in the internal storage.
 Then the OS image will be installed. Confirm to install.
+
+This might take a while. At the end your phone will boot into the new OS.
     
 #### **Install addons:**
 If you want to install any addons like Google Apps, microg or F-droid, use the toggle below **before** starting the install process!
 After the installation you'll be taken through the process. Note, that this process is still somewhat experimental and using ROMs with
 included Google Apps (like PixelExperience) or MicroG (lineageOS for microg) is recommended.
 
-This might take a while. At the end your phone will boot into the new OS.
+#### **Warning:**
+Don't try to add addons like Google Apps if your OS ROM already has Google Apps or microG included! Otherwise your system will break!
 """
             )
         ]

openandroidinstaller/views/start_view.py

@@ -160,6 +160,9 @@ def build(self):
 - **connect your device to this computer via USB** and
 - **allow USB debugging in the pop-up on your phone**.
 - Then **press the button 'Search device'**.
+- If you **already unlocked the bootloader** of your device, please toggle the switch below, to skip the procedure.
+If you don't know what this means, you most likely don't need to do anything and you can just continue.
+
 When everything works correctly you should see your device name here and you can continue.
                 """
                 ),

openandroidinstaller/views/welcome_view.py

@@ -67,6 +67,16 @@ def build(self):
                 Text(
                     "We will walk you through the installation process nice and easy."
                 ),
+                Markdown(
+                    """
+The following steps are performed in this tool:
+- First, we help you to **get your device ready** for the installation process.
+- Next, you can **select the operating system** you want to install (with guidance).
+- Then, we guide you though the process of **unlocking the bootloader** (if necessary). If you don't know what that means, it will be explained later.
+- As a next step, the **operation system is installed**. At this point you can also **select to install additional software** ("addons") like Google Apps.
+- Finally your device starts your new operating system.
+                """
+                ),
                 Divider(),
                 Markdown(
                     """