docs: optimize package.json keywords for discoverability

Author: avoidwork

package.json

@@ -4,19 +4,21 @@
 	"description": "A fast, lightweight LRU (Least Recently Used) cache for JavaScript with O(1) operations and optional TTL support.",
 	"keywords": [
 		"LRU",
-		"TTL",
-		"browser",
 		"cache",
 		"caching",
-		"expiration",
-		"fast",
+		"TTL",
+		"ttl-cache",
 		"least-recently-used",
 		"lightweight",
+		"fast",
+		"performance",
 		"memoization",
-		"memory",
+		"expiration",
+		"typescript",
 		"nodejs",
-		"performance",
-		"typescript"
+		"browser",
+		"esm",
+		"zero-dependencies"
 	],
 	"homepage": "https://github.com/avoidwork/tiny-lru",
 	"bugs": {