Move internal knowledge-base articles into the public knowledge-base.

[johnnymatthews]

We have an internal knowledge-base (KB) that support engineers use and reference to help folks. Some of these internal articles can be moved to the public KB. I'm gonna list these internal articles here, but only folks within the ClickHouse org will be able to view them (other folks with get GitHub's 404 page).

• [x] Internal KB related to MS technologies, alt link
• [ ] Importing GeoJSON with a deeply nested object array
• [ ] How to connect to CH Cloud using SSH Keys
• [x] How to convert a Map(String, String) to a Map(String,Array(String))
• [x] How do I check compression ratios for my data in ClickHouse
• [x] How to use the ClickHouse neighbor function with timestamps
• [x] How to create a table that can query multiple remote clusters