* Update en_US.json
1. Severe mistake fixed: certain translation is previously incomplete.
* Update faq_en.md
1. Modified 1 entry for context consistency with lately merged en_US translation
* Update en_US.json
1. Attached colons to all Input Prompts as proposed.
2. Minor changes to translation expressions.
* Update en_US.json
1. Removed trailing periods on button texts
* docs(README.ko): add Korean Translation of README.md
* docs(Faiss): add Korean tips for Faiss
* docs(README): add hyperlinks for Korean translation on all README
* docs(training_tips): add Korean translation for training tips
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Co-authored-by: Ftps <63702646+Tps-F@users.noreply.github.com>