seo optmized desc for openfeature docs

Author: kp-cat

website/docs/sdk-reference/openfeature/overview.mdx

@@ -1,7 +1,7 @@
 ---
 id: overview
 title: OpenFeature Providers
-description: List of all supported OpenFeature Providers.
+description: Integrate feature flags using OpenFeature's vendor-agnostic API with ConfigCat OpenFeature providers. Supported for .NET, Java, Python, Go, JavaScript, React, Node.js, and more.
 slug: /sdk-reference/openfeature
 ---