The GitHub actions were running everytime a new commit was made to the
repo, but that wasn't needed. For example, we don't need to try to
create a new docker image if the libraries didn't change, same to build
the whole site after a change in the README.md.
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Signed-off-by: George Araújo <george.gcac@gmail.com>
Added GitHub action to do axe accessibility tests with [axe
cli](https://github.com/dequelabs/axe-core-npm/tree/develop/packages/cli).
I believe it is best by default to let this be run only manually, since
fixing some of the issues are not straightforward (I haven't fixed them
all for this template yet).
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Signed-off-by: George Araújo <george.gcac@gmail.com>
George