Online coding classes for beginners 2022 guide (#638)

* fix mardown format

* save and backup

* save and backup

* save and backup

* save and backup

* save and backup

* save and backup

* save and backup

* save and backup

* save and backup

* translate finish

* chrome plugin for watch Youtube

* fix mardown format  && fix typo

* fix markdown url

* fix markdown url

* fix markdown url

* fix markdown url

* fix markdown url

* fix markdown url

* fix markdown url

* fix markdown url

* fix error

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