Start building the Persian translation (#351)

Co-authored-by: Stan Ulbrych <stan@python.org>

Author: sepehr-rs

config.toml

@@ -99,6 +99,14 @@ translated_name = "polski"
 name = "Brazilian Portuguese"
 translated_name = "Português brasileiro"
 
+[languages.fa]
+name = "Persian"
+translated_name = "فارسی"
+html_only = true
+sphinxopts = [
+    '-D html_theme_options.is_rtl=true',
+]
+
 [languages.ro]
 name = "Romanian"
 translated_name = "Românește"