update gitignore to include README.md and related files

.gitignore

@@ -2,6 +2,10 @@
 *
 !*/
 
+# Do not ignore README.md and related files.
+!README.md
+!/readme_images/**
+
 # Do not ignore git files in the root of the repo.
 !/.git*
 

README.md

+
+# How to set up the project?
+
+- Clone
+- Re-generate VS project file
+    
+    ![image.png](readme_images/image.png)
+    
+- Double-click the VS solution file(sln)
+- Go to `Jump_1Runtime.cpp` and `Jump_1Runtim.h` and make sure what’s after `#include` points to your Unreal Engine Install location
+    
+    ![image.png](readme_images/image%201.png)
+
+- Don't forget to check out to a new branch before you start playing around!
\ No newline at end of file