docs: scaffold Video Tutorials page - #322

Running Vale across on the following files affected by this PR:

- getting-started/video-tutorials.mdx

Attempting to initialize Vale linter...
No customer vale configuration detected. Using Mintlify's default configuration.
Attempting to run Vale spellcheck...
Vale spellcheck completed successfully.

getting-started/video-tutorials.mdx:
	- 3:38      Did you really mean 'walkthroughs'?
	- 3:58      Did you really mean 'Nevermined'?
	- 7:46      Did you really mean 'walkthroughs'?
	- 7:99      Did you really mean 'Nevermined'?
	- 15:20     Did you really mean 'Nevermined'?
	- 126:5     Did you really mean 'Nevermined'?
	- 148:46    Did you really mean 'agentic'?
	- 149:28    Did you really mean 'Realtime'?


Found 8 suggested changes across 1 files in 739.48ms