[ISSUE #72] LinkedIn Ads documentation

[maxi297]

What

Addresses https://github.com/airbytehq/snowflake-native-apps/issues/72

How

Taking the process extracted from https://github.com/airbytehq/snowflake-native-apps/issues/71 and creating a new document describing the process.

This document should not be shown in the sidebar as it is not defined in https://github.com/airbytehq/airbyte/blob/master/docusaurus/sidebars.js. This should make it hidden but still accessible through https://docs.airbyte.com/snowflake-native-apps/linkedin-ads

[brianjlai]

@maxi297 a few notes on changes I pushed to the branch

• I modified public -> your_schema. Though public is common, I think using your_schema is more accurate because a customer can define their own schemas. And also we did reference schema a few times so better for consistency
• Added the additional step we need which is to grant CREATE to the app so that it can create the tables if they don’t already exist
• Renamed the app AIRBYTE_LINKEDIN_ADS and got rid of a few places where we also mentioned test which we should avoid
• I broke apart some of the bigger blocks of granting permissions into individual bullet points so that we could annotate it more. The comments can make it hard to tell whats it’s doing
• Removed the under the hood information about calling the stored procedure. I don’t think thats necessary for users to know or understand

Otherwise the rest looks great. Nice work and approved!

[katmarkham]

This layout is much easier to digest! Thanks @maxi297