Update README.md

Author: eVisualUser

build/README.md

@@ -1,3 +1,18 @@
 # Build Folder
 Here you will find the build.<br/>
 With the pages located in "/pages/"
+
+## The "input" file.
+Contain all user inputs settings.<br/>
+Take care of this file, because it is very strict.<br/>
+
+RIGHT d<br/>
+LEFT q<br/>
+UP z<br/>
+DOWN s<br/>
+OK e<br/>
+CANCEL c<br/>
+SAVE p<br/>
+EXIT x<br/>
+
+After this text everything else will not be read.