.env support added.

.idea removed

Author: shaileshmishra

README.md

@@ -16,7 +16,7 @@ You will need JDK installed on your machine. You can install it from [here](http
 To use the Contentstack Java SDK to your existing project, perform the steps given below:
 
 1. **Maven**
-```
+```java
 <dependency>
   <groupId>com.contentstack.sdk</groupId>
   <artifactId>java</artifactId>
@@ -25,7 +25,7 @@ To use the Contentstack Java SDK to your existing project, perform the steps giv
 ```
 
 2. **Gradle**
-```
+```java
 implementation 'com.contentstack.sdk:java:1.5.6'
 ```
 
@@ -58,7 +58,7 @@ A publishing environment corresponds to one or more deployment servers or a cont
 #### Initializing your SDK
 
 To initialize the SDK, specify application  API key, access token, and environment name of the stack as shown in the snippet given below:
-```
+```java
 Stack stack = Contentstack.stack( "apiKey", "accessToken", "environment_name");
 ```
 To get the API credentials mentioned above, log in to your Contentstack account and then in your top panel navigation, go to Settings &gt; Stack to view the API Key and Access Token.
@@ -69,7 +69,7 @@ To get the API credentials mentioned above, log in to your Contentstack account
 
 To retrieve a single entry from a content type use the code snippet given below:
 
-```
+```java
 ContentType contentType = stack.contentType("content_type_uid");
 Entry blogEntry = contentType.entry("entry_uid");
 blogEntry.fetch(new EntryResultCallBack() {
@@ -86,7 +86,7 @@ public void onCompletion(ResponseType responseType, Error error) {
 
 To retrieve multiple entries of a particular content type, use the code snippet given below:
 
-```
+```java
 //stack is an instance of Stack class
 Query blogQuery = stack.contentType("content_type_uid").query();
 blogQuery.find(new QueryResultsCallBack() {
@@ -116,7 +116,7 @@ For example, if you want to crop an image (with width as 300 and height as 400),
 
 You can use the Image Delivery API functions in this SDK as well. Here are a few examples of its usage in the SDK.
 
-```
+```java
 //set the image quality to 100
 LinkedHashMap imageParams = new LinkedHashMap();
 imageParams.put("quality", 100);