update readme

README.md

@@ -28,11 +28,11 @@ php cli/put.php processor filename [delay]
 
 ### fix
 
-check and fix missed FS segments in blockchain
+check (validate) existing namespace and fix missed FS pieces in blockchain
 
 #### logic
 
-similar to the [put](#put) logic but using namespace provided as second argument
+similar to the [put](#put) logic but using namespace provided as the additional argument
 
 #### example