Add cron-ed workflow

.github/workflows/update.yml

@@ -0,0 +1,27 @@
+name: update
+
+    on:
+      schedule:
+        - cron: "0 22 * * *" #runs at 22:00 UTC everyday
+
+    jobs:
+      build:
+        runs-on: ubuntu-latest
+
+        steps:
+          - name: checkout repo content
+            uses: actions/checkout@v2
+          - name: setup python
+            uses: actions/setup-python@v2
+            with:
+              python-version: 3.8
+          - name: execute py script # run the run.py to get the latest data
+            run: |
+              python -m pip install --upgrade pip
+              pip install -r requirements.txt
+            env:
+              key: ${{ GITHUB_TOKEN }} # if run.py requires passwords..etc, set it as secrets
+          - name: update_count
+            run: |
+              python query_api.py
+              python plot.py