please upload the resource files mentioned in the readme.md

i want to try the example, but I don't have the png and json file. 
and i want to know , how to produce the Bitmap fonts png and json file. 

i use "Bitmap Font Generator", but it don't produce the uv cord.  it produce like this:
<char id="48" x="164" y="24" width="19" height="23" xoffset="-2" yoffset="5" xadvance="15" page="0" chnl="15" />