chore: fix typo in README

Author: achilleas-kal

README.md

@@ -79,7 +79,7 @@ Note that the [sync client](https://github.com/InjectiveLabs/sdk-python/blob/mas
 
 ### Changelogs
 **0.5.7.4**
-* Refactor fetch_metada script to use K8S
+* Refactor fetch_metadata script to use K8S
 * Refactor testnet network config to K8S
 * Removed print logs and standardized logging to info
 * Added support for custom cookie in client initialization