Add a folder to stats-page to collect statics

stats-page/Dockerfile

@@ -14,7 +14,7 @@ RUN apt-get update \
     && rm -rf /var/lib/apt/lists/*
 
 RUN pip install --upgrade pip
-RUN mkdir /code
+RUN mkdir /code && mkdir /statics
 WORKDIR /code
 ADD requirements.txt /code/
 RUN pip install -r requirements.txt