Add standard workdir for Dockerimage (#534)
As requested by @curiousdannii in https://github.com/trzecieu/emscripten-docker/issues/58#issuecomment-648760800
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 3c9c07a..6f47d7e 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -140,6 +140,10 @@
# Copy this Dockerimage into image, so that it will be possible to recreate it later
COPY Dockerfile /emsdk/dockerfiles/emscripten-core/emsdk/
+# ------------------------------------------------------------------------------
+# Use commonly used /src as working directory
+WORKDIR /src
+
LABEL maintainer="kontakt@trzeci.eu" \
org.label-schema.name="emscripten" \
org.label-schema.description="The official container with Emscripten SDK" \
