docs: Add guide "HttpCrawler with custom parser" #53

Job	Run time
PR title check	3s
Code checks / Spell check	7s
Code checks / Actions lint check	30s
Doc checks / Doc checks / Docs check	1m 41s
Code checks / Lint check / Lint check (3.14)	25s
Code checks / Lint check / Lint check (3.10)	24s
Code checks / Lint check / Lint check (3.13)	23s
Code checks / Type check / Type check (3.10)	45s
Code checks / Type check / Type check (3.14)	47s
Code checks / Type check / Type check (3.12)	44s
Code checks / Type check / Type check (3.13)	46s
Code checks / Lint check / Lint check (3.11)	23s
Code checks / Type check / Type check (3.11)	42s
Code checks / Lint check / Lint check (3.12)	22s
Tests / Unit tests / Unit tests (macos-latest, 3.10)	5m 3s
Tests / Unit tests / Unit tests (windows-latest, 3.10)	7m 48s
Tests / Unit tests / Unit tests (macos-latest, 3.11)	11m 59s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.14)	3m 44s
Tests / Unit tests / Unit tests (macos-latest, 3.13)	6m 23s
Tests / Unit tests / Unit tests (windows-latest, 3.14)	6m 0s
Tests / Unit tests / Unit tests (windows-latest, 3.12)	7m 5s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.13)	4m 30s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.12)	5m 7s
Tests / Unit tests / Unit tests (macos-latest, 3.12)	7m 31s
Tests / Unit tests / Unit tests (macos-latest, 3.14)	4m 6s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.10)	5m 2s
Tests / Unit tests / Unit tests (windows-latest, 3.13)	5m 43s
Tests / Unit tests / Unit tests (windows-latest, 3.11)	6m 53s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.11)	4m 9s
	1h 39m 5s

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