Changed Docker File

Author: Joshua Mayanja

Dockerfile

@@ -21,6 +21,6 @@ RUN apt-get update && \
 RUN apt-get autoremove -y \
     && rm -rf /var/lib/apt/lists/*
 
-RUN python3 -m virtualenv -p python3 ./env
+RUN virtualenv -p python3 ./env
 
 RUN ./env/bin/python3 -m pip install -r requirements.txt