Garden EOL (#662)

Signed-off-by: Addisu Z. Taddese <[email protected]>

README.md

@@ -3,27 +3,26 @@
 ROS 2 version | Gazebo version | Branch | Binaries hosted at
 -- | -- | -- | --
 Foxy | Citadel | [foxy](https://github.com/gazebosim/ros_gz/tree/foxy) | https://packages.ros.org
-Foxy | Edifice | [foxy](https://github.com/gazebosim/ros_gz/tree/foxy) | only from source
-Galactic | Edifice | [galactic](https://github.com/gazebosim/ros_gz/tree/galactic) | https://packages.ros.org
+Foxy | Edifice | [foxy](https://github.com/gazebosim/ros_gz/tree/foxy) | only from source [^2]
+Galactic | Edifice | [galactic](https://github.com/gazebosim/ros_gz/tree/galactic) | https://packages.ros.org [^2]
 Galactic | Fortress | [galactic](https://github.com/gazebosim/ros_gz/tree/galactic) | only from source
 Humble | Fortress | [humble](https://github.com/gazebosim/ros_gz/tree/humble) | https://packages.ros.org
-Humble | Garden | [humble](https://github.com/gazebosim/ros_gz/tree/humble) | [gazebo packages](https://gazebosim.org/docs/latest/ros_installation#gazebo-garden-with-ros-2-humble-iron-or-rolling-use-with-caution-)[^1]
+Humble | Garden | [humble](https://github.com/gazebosim/ros_gz/tree/humble) | [gazebo packages](https://gazebosim.org/docs/latest/ros_installation#gazebo-garden-with-ros-2-humble-iron-or-rolling-use-with-caution-)[^1] [^2]
 Humble | Harmonic | [humble](https://github.com/gazebosim/ros_gz/tree/humble) | [gazebo packages](https://gazebosim.org/docs/harmonic/ros_installation#-gazebo-harmonic-with-ros-2-humble-iron-or-rolling-use-with-caution-)[^1]
 Iron | Fortress | [humble](https://github.com/gazebosim/ros_gz/tree/iron) | https://packages.ros.org
-Iron | Garden | [humble](https://github.com/gazebosim/ros_gz/tree/iron) | only from source
+Iron | Garden | [humble](https://github.com/gazebosim/ros_gz/tree/iron) | only from source [^2]
 Iron | Harmonic | [humble](https://github.com/gazebosim/ros_gz/tree/iron) | only from source
-Jazzy | Garden | [ros2](https://github.com/gazebosim/ros_gz/tree/ros2) | only from source
+Jazzy | Garden | [ros2](https://github.com/gazebosim/ros_gz/tree/ros2) | only from source [^2]
 Jazzy | Harmonic | [jazzy](https://github.com/gazebosim/ros_gz/tree/jazzy) | https://packages.ros.org
 Rolling | Fortress | [humble](https://github.com/gazebosim/ros_gz/tree/humble) | https://packages.ros.org
-Rolling | Garden | [ros2](https://github.com/gazebosim/ros_gz/tree/ros2) | only from source
+Rolling | Garden | [ros2](https://github.com/gazebosim/ros_gz/tree/ros2) | only from source [^2]
 Rolling | Harmonic | [ros2](https://github.com/gazebosim/ros_gz/tree/ros2) | only from source
 
-[^1]: Binaries for these pairings are provided from a the packages.osrfoundation.org repository. Refer to https://gazebosim.org/docs/latest/ros_installation for installation instructions.
+[^1]: Binaries for these pairings are provided from the packages.osrfoundation.org repository. Refer to https://gazebosim.org/docs/latest/ros_installation for installation instructions.
+[^2]: Note that the Gazebo version on this row has reached end-of-life.
 
 For information on ROS(1) and Gazebo compatibility, refer to the [noetic branch README](https://github.com/gazebosim/ros_gz/tree/noetic)
 
-> Please [ticket an issue](https://github.com/gazebosim/ros_gz/issues/) if you'd like support to be added for some combination.
-
 [Details about the renaming process](README_RENAME.md) from `ign` to `gz` .
 
 **Note**: The `ros_ign` prefixed packages are shim packages that redirect to their `ros_gz` counterpart.
@@ -86,7 +85,7 @@ Be sure you've installed
 
 #### Gazebo
 
-Install either [Fortress, Garden, or Harmonic](https://gazebosim.org/docs).
+Install either [Fortress, Harmonic or Ionic](https://gazebosim.org/docs).
 
 Set the `GZ_VERSION` environment variable to the Gazebo version you'd
 like to compile against. For example:
@@ -97,7 +96,7 @@ like to compile against. For example:
 
 #### Compile ros_gz
 
-The following steps are for Linux and OSX.
+The following steps are for Linux and macOS.
 
 1. Create a colcon workspace: