chore(docs): Updated Index and Tutorial docs #1365

Job	Run time
integration-tests / Plan	5s
integration-tests / Build charm (indico)	6m 32s
integration-tests / Build rock (indico)	11m 30s
integration-tests / Build rock (indico-nginx)	4m 30s
integration-tests / Plan Image Scanning	4s
integration-tests / Integration tests / Integration tests (test_actions.py)	12m 39s
integration-tests / Integration tests / Integration tests (test_charm.py)	11m 49s
integration-tests / Integration tests / Integration tests (test_s3.py)	13m 55s
integration-tests / Integration tests / Integration tests (test_saml.py)	12m 49s
integration-tests / Integration tests / Integration tests (test_loki.py)	11m 54s
integration-tests / Scan Image (ghcr.io-canonical-indico-38f8568821be72c6ce094e5fbc0cda5b4092fc27-_1.0_amd64.tar)	2m 16s
integration-tests / Scan Image (ghcr.io-canonical-indico-nginx-b4939c8a082cc50ce951f040e32b1881e5ce78e0-_1.0_amd64.tar)	1m 17s
integration-tests / Required Integration Test Status Checks	1s
	1h 29m 21s

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