Merge pull request #710 from htm-community/release_builds

CI: try OSX tests with py 3.6

.github/workflows/build.yml

@@ -35,7 +35,7 @@ jobs:
       if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags') # only on tag/release
       uses: actions/setup-python@v1
       with:
-        python-version: 3.6
+        python-version: 3.7 #FIXME for better PyPI compatibility, we need to compile on older python. But unittests  fail to import with <3.7
 
     - name: Versions
       run: |

README.md

@@ -41,6 +41,8 @@ in C++ library.
 ### Binary releases
 
 If you want to use `htm.core` from Python, the easiest method is to install from [PyPI](https://test.pypi.org/project/htm.core/)
+  - Note: to install from `pip` you'll need Python 3.7+ 
+
 ```
 python -m pip install -i https://test.pypi.org/simple/ htm.core
 ```