Adding docs for keychain encryption

Author: “Akshay

CHANGELOG.md

@@ -8,6 +8,19 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Fixed
 - `EmbeddedSessionManager` methods is now accessible which were library group restricted before.
+- Added timeout for crypto operations to prevent ANRs.
+
+### Disabling Keychain Encryption
+The Iterable SDK provides an option to disable encryption for keychain storage. By default, encryption is enabled to securely store sensitive user data.
+To disable keychain encryption, set the `keychainEncryption` parameter to `false` when initializing the SDK:
+
+```java
+IterableConfig config = new IterableConfig.Builder()
+    .setKeychainEncryption(false)  // Disable encryption for keychain storage
+    .build();
+
+IterableApi.initialize(context, apiKey, config);
+```
 
 ## [3.5.11]