Add Multilang Support Docs (#1183)

* Add Multilang Support Docs

* Remove support levels

* Move Readme Sections

Author: MarvNC

README.md

@@ -13,7 +13,7 @@
 
 ## What is Yomitan?
 
-Yomitan turns your web browser into a tool for building Japanese language literacy by helping you **read** texts that would otherwise be too difficult to tackle.
+Yomitan turns your web browser into a tool for building language literacy by helping you **read** texts that would otherwise be too difficult to tackle in [a variety of supported languages](#multilanguage-support).
 
 Yomitan provides powerful features not available in other browser-based dictionaries:
 

docs/supported-languages.md

@@ -0,0 +1,42 @@
+# Supported Languages
+
+Yomitan supports a variety of languages, although the level of support may vary depending on the extent to which deinflections and text transforms have been implemented.
+
+These are the languages currently supported by Yomitan:
+
+| Language       | Code |
+| -------------- | ---- |
+| Albanian       | sq   |
+| Ancient Greek  | grc  |
+| Arabic         | ar   |
+| Cantonese      | yue  |
+| Chinese        | zh   |
+| Dutch          | nl   |
+| English        | en   |
+| Finnish        | fi   |
+| French         | fr   |
+| German         | de   |
+| Greek          | el   |
+| Hungarian      | hu   |
+| Indonesian     | id   |
+| Italian        | it   |
+| Japanese       | ja   |
+| Khmer          | km   |
+| Korean         | ko   |
+| Lao            | lo   |
+| Latin          | la   |
+| Mongolian      | mn   |
+| Old Irish      | sga  |
+| Persian        | fa   |
+| Polish         | pl   |
+| Portuguese     | pt   |
+| Romanian       | ro   |
+| Russian        | ru   |
+| Serbo-Croatian | sh   |
+| Spanish        | es   |
+| Swedish        | sv   |
+| Thai           | th   |
+| Turkish        | tr   |
+| Vietnamese     | vi   |
+
+For more information on how to add or improve support for a language, please refer to the [language features documentation](./development/language-features.md).