Update ROS 2 distros in README.md (#968)

Author: sea-bass

README.md

@@ -1,9 +1,9 @@
 rosbridge_suite
 ===============
 
-[![ROS Foxy version](https://img.shields.io/ros/v/foxy/rosbridge_suite)](https://index.ros.org/p/rosbridge_suite/github-RobotWebTools-rosbridge_suite/#foxy)
-[![ROS Galactic version](https://img.shields.io/ros/v/galactic/rosbridge_suite)](https://index.ros.org/p/rosbridge_suite/github-RobotWebTools-rosbridge_suite/#galactic)
 [![ROS Humble version](https://img.shields.io/ros/v/humble/rosbridge_suite)](https://index.ros.org/p/rosbridge_suite/github-RobotWebTools-rosbridge_suite/#humble)
+[![ROS Iron version](https://img.shields.io/ros/v/iron/rosbridge_suite)](https://index.ros.org/p/rosbridge_suite/github-RobotWebTools-rosbridge_suite/#iron)
+[![ROS Jazzy version](https://img.shields.io/ros/v/jazzy/rosbridge_suite)](https://index.ros.org/p/rosbridge_suite/github-RobotWebTools-rosbridge_suite/#jazzy)
 [![ROS Rolling version](https://img.shields.io/ros/v/rolling/rosbridge_suite)](https://index.ros.org/p/rosbridge_suite/github-RobotWebTools-rosbridge_suite/#rolling)
 
 
@@ -55,8 +55,12 @@ Releasing requires push access to [RobotWebTools/rosbridge_suite](https://github
 2. Manually edit and clean up the changelogs. Commit the changes.
 3. Run `catkin_prepare_release --bump [major/minor/patch]` to bump versions in package.xml and push changes to origin.
 4. Run bloom-release commands to create PRs to update rosdistro:
-    - `bloom-release --rosdistro foxy --track foxy rosbridge_suite`
-    - `bloom-release --rosdistro galactic --track galactic rosbridge_suite`
-    - `bloom-release --rosdistro rolling --track rolling rosbridge_suite`
+    - `bloom-release --rosdistro humble rosbridge_suite`
+    - `bloom-release --rosdistro iron rosbridge_suite`
+    - `bloom-release --rosdistro jazzy rosbridge_suite`
+    - `bloom-release --rosdistro rolling rosbridge_suite`
 
-Once the PRs are merged, packages will be available for each distro after the next sync. Build/sync status can be viewed at: [foxy](http://repo.ros2.org/status_page/ros_foxy_default.html), [galactic](http://repo.ros2.org/status_page/ros_galactic_default.html), [rolling](http://repo.ros2.org/status_page/ros_rolling_default.html).
+Note that right now, the Humble release is tracked in the `humble` branch, while Iron and later are tracked in the `ros2` branch.
+
+Once the PRs are merged, packages will be available for each distro after the next sync.
+Build/sync status can be viewed at: [humble](http://repo.ros2.org/status_page/ros_humble_default.html), [iron](http://repo.ros2.org/status_page/ros_iron_default.html), [jazzy](http://repo.ros2.org/status_page/ros_jazzy_default.html), and [rolling](http://repo.ros2.org/status_page/ros_rolling_default.html).