add Sphinx Check

.github/workflows/docs-check.yml

@@ -0,0 +1,17 @@
+name: "Docs check"
+# https://github.com/marketplace/actions/sphinx-build
+
+on:
+- pull_request
+
+jobs:
+  docs:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - uses: ammaraskar/sphinx-action@master
+      with:
+        # git is requried to clone the docs theme
+        pre-build-command: "apt-get update -y && apt-get install -y git"
+        docs-folder: "docs/"
+        repo-token: "${{ secrets.GITHUB_TOKEN }}"

docs/source/apex.rst

@@ -57,4 +57,3 @@ TPU 16-bit
 
     # turn on 16-bit
     trainer = Trainer(num_tpu_cores=8, precision=16)
-