Update README.md

README.md

@@ -35,13 +35,20 @@ $ (cd testsuite/partest && ./runtests.pl -j8)
 
 OpenModelica.git is a superproject. Clone the project using:
 ```bash
-$ git clone https://github.com/OpenModelica/OpenModelica.git --recursive
+git clone https://github.com/OpenModelica/OpenModelica.git --recursive
 ```
 To keep the project updated, use something like:
 ```bash
-$ git pull --recursive && git submodule foreach --recursive "git submodule update"
+git pull --recursive && git submodule foreach --recursive "git submodule update"
 ```
 If you have push access to the submodules, you can push them all together and let [hudson](https://test.openmodelica.org/hudson/) run the tests before this project is updated (only necessary if you change an interface or the test suite at the same time as [OMCompiler](https://github.com/OpenModelica/OMCompiler)):
 ```bash
 git submodule foreach --recursive "git push"
 ```
+If you are a developer and want to track the latest heads, use:
+```
+# To clone
+git clone https://github.com/OpenModelica/OpenModelica.git --recursive && (cd OpenModelica && git submodule foreach --recursive "git checkout master")
+# To update
+git submodule foreach --recursive "git pull"
+```