Adding release badge

README.md

@@ -1,4 +1,4 @@
-[!(https://badgen.net/badge/last%20release/3.0.1/green)]
+![Last release](https://badgen.net/badge/last%20release/3.0.1/green)
 
 [*To read this README in English, click here.*](https://gitlab.am-networks.fr/am/PasswordGenerator-PHP/-/blob/master/README_en.md)
 

README_en.md

@@ -1,4 +1,4 @@
-[!(https://badgen.net/badge/last%20release/3.0.1/green)]
+![Last release](https://badgen.net/badge/last%20release/3.0.1/green)
 
 [*Pour lire ce README en Français, cliquez ici.*](https://gitlab.am-networks.fr/am/PasswordGenerator-PHP/-/blob/master/README.md)