fixing heroku deploy

Author: quinn-dougherty

Dockerfile

@@ -8,7 +8,7 @@ WORKDIR /app
 
 RUN pip install -q -r requirements.txt
 
-COPY src src 
+COPY . . 
 
 EXPOSE 8050
 

heroku.yml

@@ -1,3 +1,5 @@
 build:
   docker:
     web: Dockerfile.dash
+  config: 
+    PORT: ${PORT}