README.md: persian added to list of supported languages

mariebehzadi · mariebehzadi · commit 0671a6f51bef · 2018-05-27T18:26:20.000+04:30
diff --git a/README.md b/README.md
@@ -10,6 +10,7 @@
 * [বাংলা](bn/preface.md)
 * [日本語](ja/preface.md)
 * [中文](zh/preface.md)
+* [پارسی](fa/preface.md)
 
 # Donate
 
