set base url

Author: pancakereport

.github/workflows/a11y.yml

@@ -5,6 +5,11 @@ on:
     branches:
       - main
   pull_request:
+env:
+  # `BASE_URL` determines, relative to the root of the domain, the URL that your site is served from.
+  # E.g., if your site lives at `https://mydomain.org/myproject`, set `BASE_URL=/myproject`.
+  # If, instead, your site lives at the root of the domain, at `https://mydomain.org`, set `BASE_URL=''`.
+  BASE_URL: ''
 
 jobs:
   axe-check: