adding docker-compose readme and fixing docker-compose context

docker/README.md

@@ -0,0 +1,13 @@
+# Docker compose files
+
+This folder contains docker-compose files used to spin up OHIF-Viewer with differnt options such as locally or with any PAS you desire to
+
+## Public Server
+#### build
+
+`$ docker-compose -f docker-compose-publicserver.yml build`
+
+#### run
+`$ docker-compose -f docker-compose-publicserver.yml up -d`
+
+then, access the application at (http://localhost)[http://localhost]

docker/docker-compose-publicserver.yml

@@ -2,9 +2,11 @@ version: '3.5'
 
 services:
 
-  Viewer:
+  viewer:
     container_name: ohif-viewer
-    image: ohif/viewer:latest
+    build:
+      context: ../
+      dockerfile: Dockerfile
     ports:
       - '80:80'
     environment: