Added image to top of README.
Added image to README.
Fixed image syntax.
Moved image.
Changing alignment of image.
Using straight HTML for the image.
Using 'align' attribute for img.
Changing vspace.
Changing vspace again.
Moving image.
Merge pull request #960 from zhouyaoji/docs_add_image_readme

[doc] Added image to README.md.
adding support for a more flexible seed structure to support external urls. this helps to control the yui version on the client.
Added outline for section on creating custom frame mojit.
consistency in the comments.
Merge pull request #961 from caridy/seed

adding support for a more flexible seed structure to support external urls.
Created draft of section on creating custom frame mojit.
Fixed a formatting issue with the reST.
More fixes to the reST.
Made edits.
add more unit tests for cli mojito test