All of the additional resources should be in the resources// folder. (please remove .DS_Store and resources/.DS_Store)
There should be no other files in the root directory besides the .Rmd file.
The .Rmd filename can only contain lowercase letters. (Otherwise the filenames do not sort nicely on the repo home page.)
Please remove the first line that is blank space. The first line should start with a single hashtag #, followed by a single whitespace, and then the title.
Links to internal files must contain resources// in the path, such as:
Hi this is sitong qian sq2239.