EnvironmentModules.md

 ## Environment Modules
 
- * All environmens on the new Shark are controlled with environment modules.
+ * All environmens on the new Shark are controlled with [environment modules](http://modules.sourceforge.net/).
  * The default modules that are loaded are OpenGridScheduler and History.
  * Modules can be loaded, unloaded and switched.
  * Multiple modules can be loaded, Your $PATH will be adjusted and the latest module will have it's path as first path in your PATH environment!