Updated readme and help: inserted -v in demo

Author: nricciardi

README.md

@@ -90,6 +90,7 @@ If desired, you can create a working executable all-in-one by downloading PyInst
 - `demo`, `d` `<path>`: launch application with a demo database in path specified, path has to be the last parameter 
   - `-f`: force erase if there is already a database
   - `-o`: open app at end
+  - `-v`: verbose
 - `init`, `i`: initialize this app in users projects
   - `-f`: force reinitialization
 - `help`, `h`: print help 

main.py

@@ -57,6 +57,7 @@ def print_help() -> None:
 {Fore.GREEN}demo{Fore.RESET}, {Fore.GREEN}d{Fore.RESET} [FLAGs] <path>: launch application with a demo database in path specified, path has to the last parameter
   {Fore.MAGENTA}-f{Fore.RESET}: force erase if there is already a database
   {Fore.MAGENTA}-o{Fore.RESET}: open app at end
+  {Fore.MAGENTA}-o{Fore.RESET}: verbose
 {Fore.GREEN}init, {Fore.GREEN}i{Fore.RESET}: initialize this app in users projects
   {Fore.MAGENTA}-f{Fore.RESET}: force reinitialization
 {Fore.GREEN}help{Fore.RESET}, {Fore.GREEN}h{Fore.RESET}: print help