Update obsolete link in docs (#4423)

* Update obsolete link and screenshots

* Revert image updates

---------

Co-authored-by: djbyrne <[email protected]>
Co-authored-by: chammard <[email protected]>

Author: 3 people

docs/tutorials/cross-compilation.md

@@ -241,7 +241,7 @@ docker pull nasafprime/fprime-arm:latest
 
 In order to run the commands provided by the docker container (i.e. the cross-compilers), users must start the container and attach to a terminal inside. This should be done **after** the user has created a project to work within.
 
-To run this container, users may wish to download [this script](https://github.com/fprime-community/fprime-workshop-led-blinker/blob/main/bin/macos-docker) to a `bin` directory in the root of their project. This will start the docker container with appropriate settings. 
+To run this container, users may wish to download [this script](https://github.com/fprime-community/fprime-workshop-led-blinker/blob/devel/bin/macos-docker) to a `bin` directory in the root of their project. This will start the docker container with appropriate settings. 
 
 Alternatively, the user may run the following command to start the terminal
 ```bash