<NME> Project.toml
<BEF> ADDFILE
<MSG> Use a build stage to build docs (#805)

* Use a build stage to build docs

* Use a Pkg project for coverage

<DFF> @@ -0,0 +1,2 @@
+[deps]
+Coverage = "a2441757-f6aa-5fb2-8edb-039e3f45d037"

Use a build stage to build docs (#805)