update the readme file for 1.2 release

Author: gsasikumar

README.md

@@ -7,15 +7,14 @@ The work is inline with the Account Aggregator Specification.
 The image is pushed into docker hub. Thats the easiest to start
 https://hub.docker.com/r/gsasikumar/forwardsecrecy/tags
 
-1. docker pull gsasikumar/forwardsecrecy:v1
-2. docker run -p 8080:8080 gsasikumar/forwardsecrecy:v1
+1. docker pull gsasikumar/forwardsecrecy:v1.2
+2. docker run -p 8080:8080 gsasikumar/forwardsecrecy:v1.2
 3. Access the swagger as localhost port 8080. http://localhost:8080/swagger-ui.html
 
 
 ## How to build
 1. ./gradlew build
-2. docker build -t gsasikumar/forwardsecrecy:v1.1 .
 
 ## How to run docker
-1. docker run -p 8080:8080 gsasikumar/forwardsecrecy:v1.1
+1. docker run -p 8080:8080 gsasikumar/forwardsecrecy:v1.2