chore: changed to using ${PWD}

Signed-off-by: Ali Mukadam <[email protected]>

Author: hyder

.github/workflows/mdbook.yaml

@@ -73,15 +73,15 @@ jobs:
         env:
           CARGO_HOME: ./cargo
         run: |
-          export PATH=`pwd`/cargo/bin:${PATH}
+          export PATH=${PWD}/cargo/bin:${PATH}
           cd docs
           mdbook-admonish install
       - name: Generate docs
         shell: bash
         env:
           CARGO_HOME: ./cargo
         run: |
-          export PATH=`pwd`/tfdocs:`pwd`/cargo/bin:${PATH}
+          export PATH=${PWD}/tfdocs:${PWD}/cargo/bin:${PATH}
           make mdbuild
           touch ./docs/book/.nojekyll