Debian: add instruction for MySQL python connector (#610)

Co-authored-by: Jonathan de Jong <jonathandejong02@gmail.com>

Author: weizhouapache

source/installguide/management-server/_pkg_install.rst

@@ -53,3 +53,19 @@ Install on Ubuntu
 
    sudo apt install cloudstack-management
 
+Install on Debian
+^^^^^^^^^^^^^^^^^
+
+.. note::
+   The MySQL Python connector is not available in Debian's package repository sources, please add MySQL's own package repository:
+
+   .. code:: bash
+
+       wget https://dev.mysql.com/get/mysql-apt-config_0.8.36-1_all.deb -O /tmp/mysql-apt-config_0.8.36-1_all.deb
+       sudo apt install -y /tmp/mysql-apt-config_0.8.36-1_all.deb
+       sudo apt update
+
+.. parsed-literal::
+
+   sudo apt install cloudstack-management
+