Latvian translation added

Some terms are very hard to translate and sound quite ambigious in
Latvian once translated. Any fellow countrymen who seem to possess a
clearer and straightforward translation please don't hesitate and jump
in to correct.
Coding questions translated in Bulgarian (#110)
General questions translated in Bulgarian (#110)
HTML questions translated in Bulgarian (#110)
CSS questions translated in Bulgarian (#110)
JS questions translated in Bulgarian (#110)
Fixed few typos and one untranslated sentence. (#110)
Two more question translated. Closes #110.
Merge pull request #118 from arcanous/master

Latvian translation added
Merge pull request #119 from NikolayIT/master

Completed Bulgarian translation
Merge pull request #120 from DonaldIsFreak/master

Update Chinese-Tranditiona README.md
Add new questions to fix #121