Update conf.py

Author: mcbarton

docs/source/conf.py

@@ -10,6 +10,7 @@
     XEUS_CPP_ROOT = os.path.abspath('../..')
     command_emscripten = 'cd ..;\
                           mamba init;\
+                          . /home/docs/.bashrc;\
                           mamba create -f environment-wasm-build.yml -y;\
                           mamba activate xeus-cpp-wasm-build;\
                           mamba create -f environment-wasm-host.yml --platform=emscripten-wasm32;\