Remove CodersRank from data.json and add to removed-sites.md (with corrected name)

[nolanjparker]

Summary

CodersRank fails to load all user profiles and only returns negatives. I removed CodersRank from data.json and added it to removed-sites.md.

Details

• Removed CodersRank from data.json
• Added CodersRank to removed-sites.md
• Fixed minor formatting issue (from "Coders Rank" to "CodersRank")

Tests

I visited https://profile.codersrank.io/user/{}/ for several usernames. CodersRank failed to load any of the profiles.

Example error screen:

Usernames tested:

• username (https://profile.codersrank.io/user/username/)
• test (https://profile.codersrank.io/user/test/)
• john_doe (https://profile.codersrank.io/user/john_doe/)
• hello123 (https://profile.codersrank.io/user/hello123/)
• asdkfjas332kdfjaskdjfaks112djfkasjdfk (https://profile.codersrank.io/user/asdkfjas332kdfjaskdjfaks112djfkasjdfk/)