task: add deprecation warning

0x6861746366574 · web-flow · commit 0b6e5d497dd9 · 2022-05-18T00:10:26.000-07:00
diff --git a/README.md b/README.md
@@ -1,3 +1,5 @@
+:warning: **This SDK has been deprecated as of January 2022.** The new NEM & Symbol JavaScript SDK can be found [here](https://github.com/symbol/symbol/tree/dev/sdk/javascript). 
+
 # Symbol SDK for TypeScript and JavaScript
 
 [![npm version](https://badge.fury.io/js/symbol-sdk.svg)](https://badge.fury.io/js/symbol-sdk)

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,5 @@`
	`1`	`+:warning: This SDK has been deprecated as of January 2022. The new NEM & Symbol JavaScript SDK can be found [here](https://github.com/symbol/symbol/tree/dev/sdk/javascript).`
	`2`	`+`
`1`	`3`	`# Symbol SDK for TypeScript and JavaScript`
`2`	`4`
`3`	`5`	`[![npm version](https://badge.fury.io/js/symbol-sdk.svg)](https://badge.fury.io/js/symbol-sdk)`