* 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: NEmad Ehsanrad <emad.ehsanrad@gmail.com>