chore(su): modify readme

Author: VinceJuliano

servers/su/README.md

@@ -57,8 +57,7 @@ Create a .env file with the following variables, or set them in the OS:
 - `SU_FILE_SYNC_DB_DIR` a directory for a RocksDB backup that will hold the full binary files that are the bundles, messages, and assignments. Only used by the cli binary.
 - `SU_INDEX_SYNC_DB_DIR` a directory for a RocksDB backup that will hold an index of Processes and Messages for ordering and querying. Only used by the cli binary.
 
-## Experimental environment variables
-To use the expirimental fully local storage system set the following evnironment variables.
+To use the fully local storage system set the following evnironment variables.
 - `USE_LOCAL_STORE`  if true the SU will operate on purely RocksDB
 - `SU_FILE_DB_DIR` a local RocksDB directory of bundles
 - `SU_INDEX_DB_DIR` a local index of processes and messages