sync from upstream#1

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BernardZijlstra wants to merge 5 commits intolevel-level:masterfrom

vermiliondesign:master

Commits on Mar 26, 2019

Make sure the code support custom post type without excerpt
Gandhi11
committed

Commits on Jun 11, 2019

[Bugfix]: Fix missleading docs
Orlandster
committed

Commits on Jul 28, 2019

Merge pull request #15 from Orlandster/fix-docs
Matt Dickey
authored
Merge pull request #11 from Gandhi11/handle-custom-post-type-without-excerpt
Matt Dickey
authored

Commits on Aug 20, 2019

Update README.md
Matt Dickey
authored