Update README.md

spelling and pointer to linux install hints

Author: jub3i

README.md

@@ -17,6 +17,8 @@ node-gyp is only configured for Mac, but this project will support Windows and L
 npm install robotjs
 ```
 
+Note: See the [wiki](https://github.com/octalmage/robotjs/wiki/Building) for Linux install instructions.
+
 ## Examples
 Get the mouse location and move it. 
 
@@ -70,7 +72,7 @@ Install node-gyp using npm:
 npm install -g node-gyp
 ```
 
-Then confgure and build: 
+Then configure and build: 
 
 ```
 node-gyp configure