Update languagenames.rst

Romanian
Update languagenames.rst
Fix csb rule.
Add Assamese and Angika
Add examples to brand name in German

Examples for brand name in German were not provided, so I added some.
Update languagenames.rst

Added Greenlandic (Kalaallisut) and Danish (Dansk)
Add Greenlandic plural form
Bulgarian language name translation added
Added Tamil language name
Fix issues that break parsing.
Fix wrong 'OR' condition.