Correcting paths inside github actions

Author: Bharathgopal

.github/workflows/coverage.yml

@@ -25,7 +25,7 @@ jobs:
           cd Lab1
           PCT=$(grep 'Lines executed' coverage_checksum.txt | head -1 | sed -E 's/.*:([0-9.]+)%.*$/\1/')
           cd ../../
-          sed -i 's/badge\/coverage-[0-9]\+\.?[0-9]*%25/badge\/coverage-'"$PCT"'%25/' README.md
+          sed -i 's/badge\/coverage-[0-9]\+\.?[0-9]*%25/badge\/coverage-'"$PCT"'%25/' ../README.md
           git config user.name "github-actions[bot]"
           git config user.email "github-actions[bot]@users.noreply.github.com"
           git add ../README.md