readme: fixed small error (flameshot-org#3358)

Author: 0xflotus

README.md

@@ -272,7 +272,7 @@ Steps for using the configuration:
 
 #### On Ubuntu (Tested on 18.04, 20.04, 22.04)
 
-To use Flameshot instead of the default screenshot application in Ubuntu we need to remove the binding on <kbd>Prt Sc</kbd> key, and then create a new binding for `/usr/bin/flameshot gui` ([adaptated](https://askubuntu.com/posts/1039949/revisions) from [Pavel's answer on AskUbuntu](https://askubuntu.com/revisions/1036473/1)).
+To use Flameshot instead of the default screenshot application in Ubuntu we need to remove the binding on <kbd>Prt Sc</kbd> key, and then create a new binding for `/usr/bin/flameshot gui` ([adapted](https://askubuntu.com/posts/1039949/revisions) from [Pavel's answer on AskUbuntu](https://askubuntu.com/revisions/1036473/1)).
 
 1. Remove the binding on <kbd>Prt Sc</kbd>: