chore(readme): properly options & add screenshot

Author: 2nthony

README.md

@@ -10,6 +10,12 @@ Please consider starring the project to show your ❤️ and support.
 [![License](https://badgen.net/npm/license/git-delete-branch)](./LICENSE)
 [![donate](https://badgen.net/badge/support%20me/donate/f2a)](https://donate.evila.me)
 
+## Screenshot
+
+<p align="center">
+  <img width="600" src="https://user-images.githubusercontent.com/19513289/59366614-28fafd80-8d6d-11e9-871d-9096c4e74a63.png">
+</p>
+
 ## Features
 
 - Support delete matched branches. e.g.`fix/*`
@@ -51,14 +57,14 @@ Delete branches
 
 ### `options`
 
-#### `-r, --remote`
+#### `-r, --remotes`
 
 Delete remotes branches
 
 #### `--scope <scope>`
 
 - Default: `origin`
-- When: `-r, --remote`
+- When: `-r, --remotes`
 
 Branches scope name