Update conf.py

Author: mcbarton

docs/source/conf.py

@@ -11,7 +11,7 @@
     command_emscripten = 'cd ../..;\
                           mamba init;\
                           . /home/docs/.bashrc;\
-                          echo $PWD;
+                          echo $PWD;\
                           mamba create -p $PWD -f environment-wasm-build.yml -n xeus-cpp-wasm-build -y;\
                           mamba activate xeus-cpp-wasm-build;\
                           CONDA_SUBDIR=emscripten-wasm32 mamba create -p $PWD -f environment-wasm-host.yml;\