Add FastAPI resources under Python

[theoneim2331]

What does this PR do?

Add resource(s) | Remove resource(s) | Add info | Improve repo

IMPORTANT

• Read our contributing guidelines.
• Is this a revision of a previously submitted PR? If so, STOP! Go back, reopen the PR, and add commit(s) the branch you previously submitted. Please don't make the job of reviewing more difficult by hiding previous work.

For resources

Description

Why is this valuable (or not)?

How do we know it's really free?

For book lists, is it a book? For course lists, is it a course? etc.

Checklist:

• Search for duplicates.
• Include author(s) and platform where appropriate.
• Put lists in alphabetical order, correct spacing.
• Add needed indications (PDF, access notes, under construction).
• Used an informative name for this pull request.

Follow-up

• Check the status of GitHub Actions and resolve any reported warnings!

[github-actions]

Linter failed, fix the error(s):

free-programming-books/books/free-programming-books-langs.md
1959:1-2104:101  warning  Alphabetical ordering: swap l.1974 and l.1973         alphabetize-lists      remark-lint
1959:1-2104:101  warning  Alphabetical ordering: swap l.1975 and l.1974         alphabetize-lists      remark-lint
1959:1-2104:101  warning  Alphabetical ordering: swap l.1977 and l.1975         alphabetize-lists      remark-lint
 1970:7-1970:19  warning  Remove empty section: "FastAPI"                       no-empty-sections      remark-lint
 1972:3-1972:57  warning  Remove trailing slash (https://fastapi.tiangolo.com)  no-url-trailing-slash  remark-lint

[github-actions]

Linter failed, fix the error(s):

free-programming-books/books/free-programming-books-langs.md
1959:1-2102:101  warning  Alphabetical ordering: swap l.1973 and l.1972  alphabetize-lists  remark-lint
1959:1-2102:101  warning  Alphabetical ordering: swap l.1975 and l.1973  alphabetize-lists  remark-lint

[github-actions]

Linter failed, fix the error(s):

free-programming-books/books/free-programming-books-langs.md
1959:1-1969:155  warning  Incorrect number of blank lines between last section and next heading  blank-lines-1-0-2  remark-lint
 1970:1-1970:13  warning  Incorrect number of blank lines between heading and section            blank-lines-1-0-2  remark-lint
1971:1-2103:101  warning  Alphabetical ordering: swap l.1976 and l.1974                          alphabetize-lists  remark-lint

[github-actions]

Oh no 😟! Conflicts have been found.

Please 🙏, take a moment and address the merge conflicts of your pull request before we can evaluate it again.

Thanks in advance for your effort and patience ❤️!