docs: Add keywords field to package.json (#226)

Adding keywords to improve searchability in the npm repo.

Author: ragona

modules/client-browser/package.json

@@ -1,5 +1,6 @@
 {
   "name": "@aws-crypto/client-browser",
+  "keywords": ["cryptography", "crypto", "encryption", "envelope encryption", "client side encryption", "CSE", "aws"],
   "version": "1.0.0",
   "scripts": {
     "build": "tsc -b tsconfig.json",

modules/client-node/package.json

@@ -1,5 +1,6 @@
 {
   "name": "@aws-crypto/client-node",
+  "keywords": ["cryptography", "crypto", "encryption", "envelope encryption", "client side encryption", "CSE", "aws"],
   "version": "1.0.0",
   "scripts": {
     "build": "tsc -b tsconfig.json",

package.json

@@ -3,6 +3,7 @@
   "private": true,
   "version": "0.0.1",
   "description": "AWS Encryption SDK for JavaScript",
+  "keywords": ["cryptography", "crypto", "encryption", "envelope encryption", "client side encryption", "CSE", "aws"],
   "main": "index.js",
   "scripts": {
     "bootstrap": "./util/bootstrap_tsconfig && lerna bootstrap",