Create test-docstrings.yml (GitHub Action)

Create test-docstrings.yml #2 (#1434)

.github/workflows/test-docstrings.yml

@@ -0,0 +1,29 @@
+name: test-docstrings
+
+on: [push, pull_request]
+
+jobs:
+  run-docstring-tests:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        path: ivy
+        persist-credentials: false
+        submodules: 'recursive'
+    - uses: actions/setup-python@v3
+      with:
+        python-version: '3.8'
+
+    - name: Cache hypothesis
+      uses: actions/cache@v3
+      with:
+        path: |
+          ivy/.hypothesis
+        key: ${{ runner.os }}-hypothesis
+
+    - name: Run Docstring Tests
+      run: |
+        cd ivy
+        mkdir -p .hypothesis
+        docker run --rm -v `pwd`:/ivy -v `pwd`/.hypothesis:/.hypothesis unifyai/ivy:latest python3 -m pytest ivy/ivy_tests/test_docstrings.py