Modified description in nmcli module doc (#50661)

* Modified description in nmcli module doc

The instructions for installing module's dependencies were incomplete.
I copied the CentOS/Fedora part from the examples section, while I figured out myself the Debian/Ubuntu package names.

+label: docsite_pr

* Fix modified description in nmcli module doc

* Fix modified description in nmcli module doc again

* Fix modified description in nmcli module doc LB

lib/ansible/modules/net_tools/nmcli.py

@@ -24,8 +24,10 @@ requirements: [ nmcli, dbus, NetworkManager-glib ]
 version_added: "2.0"
 description:
     - Manage the network devices. Create, modify and manage various connection and device type e.g., ethernet, teams, bonds, vlans etc.
-    - "On CentOS and Fedora like systems, install dependencies as 'yum/dnf install -y python-gobject NetworkManager-glib'"
-    - "On Ubuntu and Debian like systems, install dependencies as 'apt-get install -y libnm-glib-dev'"
+    - 'On CentOS and Fedora like systems, the requirements can be met by installing the following packages: NetworkManager-glib,
+      libnm-qt-devel.x86_64, nm-connection-editor.x86_64, libsemanage-python, policycoreutils-python.'
+    - 'On Ubuntu and Debian like systems, the requirements can be met by installing the following packages: network-manager,
+      python-dbus (or python3-dbus, depending on the Python version in use), libnm-glib-dev.'
 options:
     state:
         description: