Merge pull request #1815 from StargazerCel/patch-1

Fix formatting in README code block #HSFDPMUW

Author: Zoey2936

global/README.md

@@ -2,7 +2,7 @@
 
 This file contains info about available Certbot DNS plugins.
 This only works for plugins which use the standard argument structure, so:
---authenticator <plugin-name> --<plugin-name>-credentials <FILE> --<plugin-name>-propagation-seconds <number>
+`--authenticator <plugin-name> --<plugin-name>-credentials <FILE> --<plugin-name>-propagation-seconds <number>`
 
 File Structure: