Update Introducing-Turtlesim.rst for zsh commands (ros2#4508) (ros2#4536)

Adding single quotes around the rqt commands so they run in zsh

Signed-off-by: Vignesh Vembar <[email protected]>
(cherry picked from commit 9489d96)

Co-authored-by: Vignesh Vembar <[email protected]>

Author: mergify[bot]

source/Tutorials/Beginner-CLI-Tools/Introducing-Turtlesim/Introducing-Turtlesim.rst

@@ -151,13 +151,13 @@ Open a new terminal to install ``rqt`` and its plugins:
 
       sudo apt update
 
-      sudo apt install ~nros-{DISTRO}-rqt*
+      sudo apt install '~nros-{DISTRO}-rqt*'
 
   .. group-tab:: RHEL
 
     .. code-block:: console
 
-      sudo dnf install ros-{DISTRO}-rqt*
+      sudo dnf install 'ros-{DISTRO}-rqt*'
 
   .. group-tab:: macOS