* check_urls=free-podcasts-screencasts-ru.md

* alphabetize added language courses

Our linter had not been looking at these languages

* fix books files

* casts and more

* reorganize files

1. make it easier to find files
2. reduce scrolling to get to README on main view of repo

* remove tr.txt again

* Add "Frontend Weekend" podcast

* Updated "Frontend Weekend" podcast group

* Added two playlists about Java core and Spring

* Added Spring to index

* add Mobile People Talks Podcast

* add Mobile People Talks Podcast
Co-authored-by: NAleksandr_Denisov <aleksandr_denisov@epam.com>

* add Podcast 2capitals

* Update section Alphabetical

* Update free-podcasts-screencasts-ru.md

* fix alphabetic order

* one more try

* fixed the last two misplaced authors

* Add 4 books

* Alphabetic order and 2 more books

* Update free-programming-books-ru.md

* Update free-podcasts-screencasts-ru.md

* Update free-podcasts-screencasts-ru.md

* Update free-programming-books-ru.md

* Update free-programming-books-ru.md

* add required space, add clojure to index

* add pdf indication

* remove trailing slashed, fix "alphabetical" order

The thing that was confusing us is that the С was capitalized, so its code point was before lower case п, but the sorting is case insensitive. Oh my. This is why we need a robot that fixes these things.

* trailing slash

* add new Podcasts

* alphabetical order