Update conf.py

Author: mcbarton

docs/source/conf.py

@@ -22,8 +22,8 @@
 micromamba create -f environment-wasm-host.yml --platform=emscripten-wasm32;
 mkdir -p build;
 cd build;
-export BUILD_PREFIX=$MAMBA_ROOT_PREFIX/envs/xeus-cpp-wasm-build;
-export PREFIX=$MAMBA_ROOT_PREFIX/envs/xeus-cpp-wasm-host;
+export BUILD_PREFIX=$MAMBA_ROOT_PREFIX/xeus-cpp-wasm-build;
+export PREFIX=$MAMBA_ROOT_PREFIX/xeus-cpp-wasm-host;
 export SYSROOT_PATH=$BUILD_PREFIX/opt/emsdk/upstream/emscripten/cache/sysroot;
 emcmake cmake -DCMAKE_BUILD_TYPE=Release \\
               -DCMAKE_PREFIX_PATH=$PREFIX \\