Update direct links to docs on Cucumber website

[mlvandijk]

👓 What did you see?

Since adding the Cucumber docs to the SmartBear site, there is a menu option "Docs" that offers several links to the actual docs:

• The arrow > goes to https://cucumber.io/docs/cucumber/ - which is a good place to start
• Installation
• Gherkin Syntax
• API Docs -> goes to API automation tools that are not Cucumber
• 3rd Party Tools -> goes to tools that for the most part are not cucumber.

I think nr 4 and 5 should not be part of this high level menu. We tried to fix this previously in #433 but this seems to have been reverted or overwritten.

✅ What did you expect to see?

Instead of links to API Docs and 3rd Party Tools, which are both not cucumber, we should provide direct links to relevant pages.
Possibly the API Docs intended to link to https://cucumber.io/docs/cucumber/ which would be more useful.

In addition, direct links to the 10 Minute Tutorial and Guides would help users find the information they need more quickly.

📦 Which tool/library version are you using?

N/A

🔬 How could we reproduce it?

Go to https://cucumber.io/ and click the Docs menu

📚 Any additional context?

As discussed in weekly committers meeting on Jan 19th 2023.