Additional material to task Linux CLI and HTTP

[AsyaYeromina]

Please, consider adding following material to the second task (Linux CLI and HTTP) as primary or extra material.

1. The article that includes browser work explanation and other levels from client to server.
   This article could replace information from 2 given articles about HTTP which is very informative but could be difficult for understanding by beginners
2. The article could be useful as a summary after passing Linux survival course and Git basics. It could be given as an additional material.
3. Also link to this comics explaining the work of DNS could be added as an extra material at your discretion.

[ORybka]

I just want to add that for me 2 parts of the article were really difficult and I needed to find additional information before reading them. I never learnt any information about HTTP so I consider myself as a total beginner.
So maybe this short video can help as the pre-reading part just to have an idea how it works in simple words and then to dive into more details 😸

[suchov]

pls create the PR's for this materials, if possible separate PR for each article, so we can review them one by one, thx