test for CI

does this version have gfortran 7,8?

Author: jacobwilliams

.github/workflows/CI.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest]
+        os: [ubuntu-20.04]
         gcc_v: [7,8,9,10] # Version of GFortran we want to use.
         python-version: [3.9]
     env: