Improve API docs, including instructions on graphql_ppx_re.#125

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parkerziegler merged 3 commits intomasterfrom task/improve-api-docs

Nov 9, 2019

+115-173

Commits on Nov 8, 2019

Improve API docs, including instructions on graphql_ppx_re. Use CombinedError.t.
parkerziegler
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Additional edits after reviewing diff.
parkerziegler
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Commits on Nov 9, 2019

Remove last references to graphql_ppx.
parkerziegler
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