Resolve "Update installation instructions"

Closes #50 (closed)

• Cherry-pick 344701b5
• delete branch 50-update-installation-instructions
• in CONTRIBUTING.md add info on how to update PROD repo (currently at gitlab.ethz.ch)

Install.md

@@ -11,7 +11,7 @@ https://conda.io/docs/user-guide/install/
 * Run the following command:
 
 ~~~~bash
-conda env create -f environment.yml
+conda env create -f environment_linux.yml
 ~~~~
 
 ### On Mac:
@@ -24,8 +24,9 @@ conda env create -f environment_mac.yml
 
 ### On Windows
 
- * Open the Anaconda Navigator
- * Go to `Environments`
- * Select Import at the bottom and specify the following
-   * Any name that you would like
-   * Specification File: Select the `environment.yml` file
+* Open the Anaconda Prompt and navigate to the workshop git repository
+* Run the following command:
+
+~~~~
+conda env create -f environment.yml
+~~~~