New farsi links (#5811)

* an intro course for linux beginners from jadi

* blockchain section added with a course from youtube

* network section added with a course from youtube

* persian podcast/screencast page created

* persian section added to podcasts and screencasts

* minor typo fixed for github actions

* new lines added for the linter

* typo fixed for the linter

Co-authored-by: Emad Ehsanrad <emad.ehsanrad@gmail.com>

README.md

@@ -122,6 +122,7 @@ Free Podcasts and Screencasts:
 + [Czech / čeština / český jazyk](casts/free-podcasts-screencasts-cs.md)
 + [English](casts/free-podcasts-screencasts-en.md)
 + [Finnish / Suomi](casts/free-podcasts-screencasts-fi.md)
++ [Persian / Farsi (Iran) / فارسى](casts/free-podcasts-screencasts-fa_IR.md)
 + [Polish / polski / język polski / polszczyzna](casts/free-podcasts-screencasts-pl.md)
 + [Portuguese (Brazil)](casts/free-podcasts-screencasts-pt_BR.md)
 + [Portuguese (Portugal)](casts/free-podcasts-screencasts-pt_PT.md)