docs: Spec the behaviour of putContext

README.md

@@ -78,8 +78,8 @@ It is also appended to the tracked events, making it a great way to create dimen
 confidence.putContext(context: ["key": ConfidenceValue(string: "value")])
 ```
 
-Note that a `ConfidenceValue` is accepted a map values, which has a constructor for all the value types
-supported by Confidence.
+Upon the returning of this function call, the updated context is appended to tracking events.
+However, to relfect the new context in flags resolves, a new call to `fetchAndActivate()` is required.
 
 ### Resolving feature flags
 Once the Confidence instance is **activated**, you can access the flag values using the