docs(README): update command for get

Josh Newman · Josh Newman · commit 74f993004ad4 · 2021-03-17T00:07:15.000-06:00
diff --git a/README.md b/README.md
@@ -96,6 +96,7 @@ Global Flags:
 Get a single parameter by path.
 
 ```console
+$ easy-params get --help
 Get parameter value by path
 
 Usage:
