ci: run doctests

Author: inkydragon

.github/workflows/CI.yml

@@ -52,6 +52,13 @@ jobs:
           Pkg.develop(PackageSpec(path=pwd()))
           Pkg.instantiate()
       - uses: julia-actions/julia-buildpkg@v1
+      - name: Run doctests
+        shell: julia --project=docs --color=yes {0}
+        run: |
+          using Documenter: DocMeta, doctest
+          using Primes
+          DocMeta.setdocmeta!(Primes, :DocTestSetup, :(using Primes); recursive=true)
+          doctest(Primes)
       - uses: julia-actions/julia-docdeploy@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}