Add documenetation

Author: TechPrimers

README.md

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-# spring-data-elastic-example-1
-Spring Data Elastic Search with REST
+# Spring Data Elastic Search Example
+This project depicts the Elastic Search functionality with Spring Data Elastic Search Example.
+
+## Description
+This Project loads the list of Users into Elastic and Searches. 
+Using the following endpoints, different operations can be achieved:
+- `/rest/search/{name}` - This returns the list of Users for a name.
+- `/rest/search/{salary}` - This returns the list of Users for the matching salary.
+- `/rest/search/all` - This returns all Users.
+
+## Libraries used
+- Spring Boot
+- Spring REST Controller
+- Spring Data Elastic Search
+
+## Git 2.10.0
+- IntelliJ IDEA 2016.2.4
+
+## Compilation Command
+- `mvn clean install` - Plain maven clean and install