TST: apparently yes. document the -el {0} thing

.github/workflows/main.yml

@@ -32,6 +32,12 @@ jobs:
           create-args: python=${{ matrix.python-version }}
           init-shell: bash
 
+      # We've gotta use "bash -el {0}" in order to actually use the shell that
+      # has the environment activated. I am not 100% clear on why this is the
+      # case (I'm just following what github.com/mamba-org/setup-micromamba
+      # says), but if you take out the "-el {0}" part and just say
+      # "shell: bash" here then all of this stuff doesn't run in the conda
+      # environment we just created.
       - name: Sanity check echo python version
         run: python --version
         shell: bash -el {0}