eliminate parenthesis

.readthedocs.yaml

@@ -22,16 +22,17 @@ build:
       curl -L https://sourceforge.net/projects/doxygen/files/rel-$DOXYGEN_VERSION/doxygen-$DOXYGEN_VERSION.linux.bin.tar.gz > doxygen.tar.gz &&
       gunzip doxygen.tar.gz &&
       tar xf doxygen.tar &&
-      mv doxygen-$DOXYGEN_VERSION/bin/doxygen ./
+      mv doxygen-$DOXYGEN_VERSION/bin/doxygen ./ &&
+      cd ..
+    - echo $(pwd)
     # get lib version & overwrite Doxyfile values
     - >
-      echo $(pwd) &&
-      RF24_VERSION=v$(awk -F "=" '/version/ {print $2}' library.properties) &&
+      RF24_VERSION=v`awk -F "=" '/version/ {print $2}' library.properties` &&
       touch docs/doxygenAction &&
       echo "PROJECT_NUMBER = $RF24_VERSION" >> docs/doxygenAction &&
       echo -e "\n@INCLUDE = doxygenAction" >> docs/Doxyfile
     # run doxygen
-    - cd docs && ./.doxygen/doxygen
+    - cd docs && ../.doxygen/doxygen
     # copy output to RTD output path for HTML files
     - mv docs/html/ "$READTHEDOCS_OUTPUT/"