fix typo (#432)

* fix typo

* fix typo

Author: afilahkle

webgl/lessons/webgl-2d-translation.md

@@ -244,7 +244,7 @@ tens of thousands of points the main code would stay the same.
 If you want you can compare [the version that uses the complex JavaScript
 above to update all the points](../webgl-2d-geometry-translate.html).
 
-I hope this example was not too obvious. On the other hand please
+I hope this example was too obvious. On the other hand please
 keep reading as we'll eventually get to a much better way to do this.
 In the [next article we'll move on to rotation](webgl-2d-rotation.html).