docs: 📝 Updates README

Author: nadeem-cs

README.md

@@ -19,7 +19,7 @@ Install it via npm:
 npm i @contentstack/management
 ```
 To import the SDK, use the following command:
-```
+```javascript
 import contentstack from ‘@contentstack/management’
 
 contentstackClient = contentstack.client()
@@ -29,12 +29,12 @@ contentstackClient = contentstack.client()
 To use this SDK, you need to authenticate your users by using the Authtoken, credentials, or Management Token (stack-level token).
 ### Authtoken
 An [Authtoken](https://www.contentstack.com/docs/developers/create-tokens/types-of-tokens/#authentication-tokens-authtokens-) is a read-write token used to make authorized CMA requests, and it is a **user-specific** token.
-```
+```javascript
 contentstackClient = contentstack.client({ authtoken: 'AUTHTOKEN' })
 ```
 ### Login
 To Login to Contentstack by using credentials, you can use the following lines of code:
-```
+```javascript
 contentstackClient.login({ email: 'EMAIL', password: 'PASSWORD'})
 .then((response) => {
 	console.log(response.notice)
@@ -44,7 +44,7 @@ contentstackClient.login({ email: 'EMAIL', password: 'PASSWORD'})
 
 ### Management Token
 [Management Tokens](https://www.contentstack.com/docs/developers/create-tokens/about-management-tokens/) are **stack-level** tokens, with no users attached to them.
-```
+```javascript
 contentstackClient.stack({ api_key: 'API_KEY', management_token: 'MANAGEMENT_TOKEN' }).contentType('CONTENT_TYPE_UID')
 .fetch()
 .then((contenttype) => {
@@ -54,14 +54,14 @@ contentstackClient.stack({ api_key: 'API_KEY', management_token: 'MANAGEMENT_TOK
 ### Contentstack Management JavaScript SDK: 5-minute Quickstart
 #### Initializing Your SDK:
 To use the JavaScript CMA SDK, you need to first initialize it. To do this, use the following code:
-```
+```javascript
 import contentstack from ‘@contentstack/management’
 
 var contentstackClient = contentstack.client({ authtoken: 'AUTHTOKEN' })
 ```
 #### Fetch Stack Detail
 Use the following lines of code to fetch your stack detail using this SDK:
-```
+```javascript
 contentstackClient.stack({ api_key: 'API_KEY' })
 .fetch()
 .then((stack) => {
@@ -71,7 +71,7 @@ contentstackClient.stack({ api_key: 'API_KEY' })
 
 #### Create Entry
 To create an entry in a specific content type of a stack, use the following lines of code:
-```
+```javascript
 var  entry  = {
 	title: 'Sample Entry',
 	url: '/sampleEntry'
@@ -85,7 +85,7 @@ contentstackClient.stack({ api_key: 'API_KEY' }).contentType('CONTENT_TYPE_UID')
 
 #### Create Asset
 The following lines of code can be used to upload assets to your stack:
-```
+```javascript
 var  asset  = {
 	upload: 'path/to/file',
 	title: 'Asset Title'
@@ -104,7 +104,7 @@ contentstackClient.stack({ api_key: 'API_KEY' }).asset().create({ asset })
 -   [Content Management API Docs](https://www.contentstack.com/docs/developers/apis/content-management-api)
 
 ### The MIT License (MIT)
-Copyright © 2012-2022  [Contentstack](https://www.contentstack.com/). All Rights Reserved
+Copyright © 2012-2023  [Contentstack](https://www.contentstack.com/). All Rights Reserved
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: