CI: add py38 to circle

Author: tacaswell

.circleci/config.yml

@@ -145,6 +145,32 @@ jobs:
           name: "Built documentation is available at:"
           command: echo "${CIRCLE_BUILD_URL}/artifacts/${CIRCLE_NODE_INDEX}/${CIRCLE_WORKING_DIRECTORY/#\~/$HOME}/doc/build/html/index.html"
 
+  docs-python38:
+    docker:
+      - image: circleci/python:3.8
+    steps:
+      - checkout
+
+      - run: *apt-install
+      - run: *fonts-install
+      - run: *pip-install
+
+      - run: *deps-install
+      - run: *mpl-install
+
+      - run: *doc-build
+
+      - run: *doc-bundle
+      - store_artifacts:
+          path: doc/build/sphinx-gallery-files.tar.gz
+
+      - store_artifacts:
+          path: doc/build/html
+
+      - run:
+          name: "Built documentation is available at:"
+          command: echo "${CIRCLE_BUILD_URL}/artifacts/${CIRCLE_NODE_INDEX}/${CIRCLE_WORKING_DIRECTORY/#\~/$HOME}/doc/build/html/index.html"
+
       - add_ssh_keys:
           fingerprints:
             - "78:13:59:08:61:a9:e5:09:af:df:3a:d8:89:c2:84:c0"
@@ -162,3 +188,4 @@ workflows:
     jobs:
       - docs-python36
       - docs-python37
+      - docs-python38