Adds celery and rabbitmq

Dockerfile

@@ -1,7 +1,7 @@
 FROM python:3
 ENV  PYTHONUNBUFFERED 1
-RUN mkdir /code
-WORKDIR /code
-COPY requirements.txt /code/
+RUN mkdir /app
+WORKDIR /app
+COPY requirements.txt /app/
 RUN pip install -r requirements.txt
-COPY ./fedireads /code
+COPY ./fedireads /app