Add description and tags to composer.json

Author: terremoth

composer.json

@@ -1,6 +1,6 @@
 {
     "name": "terremoth/php-async",
-    "description": "",
+    "description": "Write async PHP processes or process async files with no phtreads, parallel or reactive libs",
     "type": "library",
     "require": {
         "php": "^8.2",
@@ -9,7 +9,9 @@
         "ext-shmop": "*"
     },
     "keywords": [
-        "project-template"
+        "async",
+        "async-process",
+        "parallel-processing"
     ],
     "require-dev": {
         "phpunit/phpunit": "^10.0",