Update README.md

Author: jacopocarlini

README.md

@@ -1,5 +1,5 @@
-# Fast Feature-Flag Provider
-An open feature provider to operate with MongoDB
+# Fast Feature-Flags Provider
+An [open feature](https://openfeature.dev/) provider to operate with MongoDB
 
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@@ -119,4 +119,4 @@ Flag.builder()
 
 > **_NOTE:_** When a target key is provided in the context, 
 > the random assigned variant is persisted and used on subsequent evaluations, overriding the rollout percentage.
-> When the rollout percentage is modified or deleted, the assigned variant is also removed.
+> When the rollout percentage is modified or deleted, the assigned variant is also removed.