Expand list of keywords in composer.json

composer.json

@@ -3,14 +3,25 @@
     "type": "library",
     "description": "Powerful PHP database abstraction layer (DBAL) with many features for database schema introspection and management.",
     "keywords": [
-        "php",
+        "abstraction",
+        "database",
+        "dbal",
+        "db2",
+        "mariadb",
+        "mssql",
         "mysql",
         "pgsql",
-        "dbal",
-        "database",
-        "abstraction",
-        "persistence",
-        "queryobject"
+        "postgresql",
+        "oci8",
+        "oracle",
+        "pdo",
+        "queryobject",
+        "sasql",
+        "sql",
+        "sqlanywhere",
+        "sqlite",
+        "sqlserver",
+        "sqlsrv"
     ],
     "homepage": "https://www.doctrine-project.org/projects/dbal.html",
     "license": "MIT",