Add the SQL page to ReadTheDocs (#580)
Add the SQL page to ReadTheDocs (#580)

* Add frozendict as a requirement

* Revert "Add frozendict as a requirement"

This reverts commit 6d3fa92088122a96f86efd8b144e67067fb6a42d.

* Add SQL section

kensho-technologies/graphql-compiler,kensho-technologies/graphql-compiler