Adding README file.

Author: Sujit Majumdar

README.md

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+# Memcached with Spring Boot [![MIT license](https://img.shields.io/badge/license-GPL_3.0-yellow.svg)](https://raw.githubusercontent.com/CodeStuff-Repo/Spring_Memcached/master/LICENSE)
+## Why Memcached ?
+##### *Are you interacting with Database for each transaction?*
+Then you must apply a cache mechanism to avoid multiple database calls and faster response.
+## [Memcached](https://memcached.org/)
+A free, opensource, in-memory caching system to speedup application by reducing database load.
+## Memcached with Spring
+In this project you will find basic usage of memcached in spring **REST** application.
+## How to use?
+### Add dependency
+// For Gradle project add following dependency.
+
+```groovy
+compile("net.spy:spymemcached:2.12.3")
+```
+### Setup Memcached
+Add ***MemcachedClient*** bean in your springboot config file.
+
+```java
+// Connecting to memcached
+// [host = localhost ,PORT = 11211]
+// Initializing MemcachedClient.
+@Bean
+	public MemcachedClient cacheClient() {
+		InetSocketAddress ia = new InetSocketAddress("localhost", 11211);
+		MemcachedClient cacheClient = null;
+		try {
+		 cacheClient = new MemcachedClient(ia);
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		LOGGER.info("Cache setup done.");
+		return cacheClient;
+	}
+```
+#### Done !!!!
+Now you are ready to use memcache hosted on your local machine.  
+Its simple, right?
+
+### Add something to cache
+```java
+@Autowired
+private MemcachedClient memcachedClient;
+
+memcachedClient.add(key, 0, value);
+```
+### Fetch from cache
+```java
+String value = (String) memcachedClient.get(key);
+```
+
+### Delete from cache
+```java
+memcachedClient.delete(key);
+```
+
+### Flush everything
+```java
+memcachedClient.flush();
+```
+## Want more?
+Memcached provides lot more features for caching.  
+Still confused ? then,
+### Fork it and explore !!!!
+
+## Technology Stacks
+| Stack | Detail |
+| ------ | ------ |
+| Java | [Java 8](https://www.oracle.com/technetwork/java/javase/overview/java8-2100321.html) |
+|Spring boot| [2.0.3.RELEASE](https://github.com/spring-projects/spring-boot) |
+|Database|MySql|