Port wiki to ReadTheDocs or another documentation platform

Skyhook Data Management is programmable storage for databases. Every software needs documentation that is easily accessible and easy to use/refer to. Being Open Source means that developers from anywhere are welcome to contribute. Strong and easy-to-use documentation encourages developers to start contributing right away. The current documentation is hosted on GitHub wiki, which is not very intuitive to use. We want to port the documentation to Arrow’s ReadTheDocs to have a better user experience and interface. There are some sections that might need some revising to make it better. The documentation structure also would need to be reorganized in light of the migration. The documentation also needs to be in line with the Arrow documentation since we want to upstream it.