[README] improving the Manual Installation section

README.md

@@ -52,8 +52,8 @@ As [**bauh**](https://aur.archlinux.org/packages/bauh) package. There is also a
 It may require **sudo**, but prefer the **Manual installation** described below to not mess up with your system libraries.
 
 
-### Manual installation:
+### Manual installation
-If you prefer a manual and isolated installation, open your favorite terminal application and type the following commands:
+- If you prefer a manual and isolated installation, open your favorite terminal application and type the following commands:
 
 ```
 python3 -m venv bauh_env ( creates a virtualenv in a folder called **bauh_env** )
@@ -63,6 +63,27 @@ bauh_env/bin/bauh  ( launches bauh )
 
 P.S: if you want to launch it attached to your system tray, replace the last command by: ```bauh_env/bin/bauh --tray=1```
 
+- To update it to latest version:
+```
+bauh_env/bin/pip install bauh --upgrade
+```
+
+- To uninstall it, just remove the **bauh_env** folder.
+
+- To create a shortcut ( desktop entry ) in your system menu, create a file called **bauh.desktop** in **~/.local/share/applications** with the following content ( I assume in this example you created the isolated environment in your home folder using Python 3.7 ):
+```
+[Desktop Entry]
+Type=Application
+Name=bauh
+Comment=Install and remove applications ( AppImage, AUR, Flatpak, Snap )
+Exec=/home/$USER/bauh_env/bin/bauh
+Icon=/home/$USER/bauh_env/lib/python3.7/site-packages/bauh/view/resources/img/logo.svg
+```
+
+If you want a shortcut to the tray, put the **--tray=1** in the end of the **Exec** line ( e.g: Exec=/home/$USER/bauh_env/bin/bauh --tray=1 ) 
+
+P.S: If the shortcut is not working, try to replace the **$USER** var by your user name.
+
 ### Autostart
 In order to autostart the application, use your Desktop Environment settings to register it as a startup application / script (**bauh --tray=1**).