Add documentation for running tests (#88)

Author: Meir017

README.md

@@ -37,7 +37,7 @@ using [cake](https://cakebuild.net/)
 
 #### windows:
 
-```ps
+```ps1
 .\build.ps1
 ```
 
@@ -46,3 +46,9 @@ using [cake](https://cakebuild.net/)
 ```sh
 . build.sh
 ```
+
+### Run Tests
+
+```ps1
+.\build.ps1 -Target Run-Unit-Tests
+```