Typo error.

[RealWorldEdits376W]

In the what this library does (and important tricks for getting good results) section, in the second bullet point, there is repetition of the word "that".
In the codec notes paragraph, int he last second line, just above the diagram, the line written is :"As a user of this library nothing need be done to enable that." which is not correct. This line could be written as " As a user of this library nothing needs to be done to enable that.
Thank you.