added readme

README.md

-# key-storage-agent
+# Key Storage Agent
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+
+1.  [Introduction](#introduction)
+1.  [Setup](#setup)
+1.  [License](#license)
+
+# Introduction 
+
+This agent is responsible for storing public and private keys used in the system and also for generating key pairs.
+
+It uses the Data Storage service for storing and updating the keys.
+
+It contains the following methods:
+*  GetKey
+*  SetKey
+*  ReserveKeyUUID
+*  Revoke
+*  GenerateKeyPair
+
+# Setup
+
+### Installation
+
+How to run:
+
+```
+$ cd $GOPATH/src/code.vereign.com/code/key-storage-agent 
+$ make all
+$ ./run.sh
+```
+
+# License
+
+This project is licensed under the AGPL License - see the [LICENSE](LICENSE) file for details.
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