Merge pull request #76 from Mastercard/doc/fix-nodejs-version

update README

Author: joseph-neeraj

README.md

@@ -28,9 +28,7 @@
 NodeJS library for Mastercard API compliant payload encryption/decryption.
 
 ### Compatibility <a name="compatibility"></a>
-
-- NodeJS 6.12.3+
-- NodeJS 16.x (JWE features)
+- NodeJS 16+
 
 There shouldn't be any Node compatibility issues with this package, but it's a good idea to keep your Node versions up-to-date. It is recommended that you use one of the LTS Node.js releases, or one of the more general recent releases. A Node version manager such as `nvm` (_Mac_ and _Linux_) or `nvm-windows` is a good way to stay on top of this.