Update conf.py

Author: mcbarton

docs/source/conf.py

@@ -12,6 +12,7 @@
                           mkdir -p "$HOME/micromamba";\
                           curl -Ls https://micro.mamba.pm/api/micromamba/linux-64/latest | tar -xvj -C "$HOME/micromamba" bin/micromamba;\
                           "$HOME/micromamba/bin/micromamba" shell init -s bash -p "$HOME/micromamba";\
+                          source ~/.bashrc;\
                           micromamba create -f environment-wasm-build.yml -y;\
                           micromamba activate xeus-cpp-wasm-build;\
                           micromamba create -f environment-wasm-host.yml --platform=emscripten-wasm32;\