Merge pull request #282 from imagentleman/patch-2

Fix typos in Engineering Documentation

Author: campoy

engineering/documentation.md

@@ -189,7 +189,7 @@ and documentation conventions.
 A very good example of `CONTRIBUTING.md` is the one from [angular.js](https://github.com/angular/angular.js/blob/master/CONTRIBUTING.md).
 
 If you're starting from scratch, create a new `CONTRIBUTING.md` file pointing to this
-[general contribution guidlines](documents/CONTRIBUTING.md).
+[general contribution guidelines](documents/CONTRIBUTING.md).
 
 Then add any project specific instructions in a different section of your own `CONTRIBUTING.md`.
 
@@ -222,7 +222,7 @@ The actual form depends on whether the project is a library or a tool.
 
 For libraries, this document tends to be autogenerated from source code.
 Tools like godoc, javadoc, etc. provide an easy way to do this.
-For tools, the document will be often hand written, think about `man` pages.
+For tools, the document will be often handwritten, think about `man` pages.
 
 In both cases, this kinds of document tend to grow quite fast as they provide
 detailed information on each feature and the feature's options.