Sort by language should put "Others" at the end of the list

[DenverCoder1]

Currently "Others" is treated as if it were a language and is displayed in alphabetical order (between N and P).

Since "Others" is not actually a language and represents none of the other categories, it should be displayed at the end of the list.

[jdecool]

It could be interresting.

@maguowei are you interested by a PR to do this stuff ?

[almereyda]

The other block can also become very massive when sorting by topic:

• https://raw.githubusercontent.com/almereyda/awesome-starred/master/by-topic-sorted.md

I'd be open to review and test an implementation to move it to the bottom (for all sort categories).

Am I correct in assuming that setting a lower --topic_limit will reduce the size of Others, and move them to their respective topic?

  --topic_limit INTEGER  topic stargazer_count gt number, set bigger to reduce
                         topics number  [default: 500]