fix cat

Author: hjwp

.github/workflows/tests.yml

@@ -34,7 +34,7 @@ jobs:
             --mount type=volume,source=rootmount,target=/root \
             --mount type=bind,source=./,target=/app \
             -t hjwp/obeythetestinggoat-book-tester:latest \
-            bash -c "cat .git/config"
+            bash -c "cat ~/.gitconfig"
 
       - name: test chapter 1
         run: |