🔨 Add banner with description and links (foundry-rs#4112)

- Monochrome banner
- No color due to unpredicatable terminal color support across os/shells

foundryup/foundryup

@@ -6,6 +6,7 @@ FOUNDRY_BIN_DIR="$FOUNDRY_DIR/bin"
 FOUNDRY_MAN_DIR="$FOUNDRY_DIR/share/man/man1"
 
 main() {
+  banner
   need_cmd git
   need_cmd curl
 
@@ -243,4 +244,29 @@ ensure() {
   if ! "$@"; then err "command failed: $*"; fi
 }
 
+# Banner Function for Foundry 
+
+banner() {
+  printf '
+
+.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx
+ 
+ ╔═╗ ╔═╗ ╦ ╦ ╔╗╔ ╔╦╗ ╦═╗ ╦ ╦         Portable and modular toolkit
+ ╠╣  ║ ║ ║ ║ ║║║  ║║ ╠╦╝ ╚╦╝    for Ethereum Application Development 
+ ╚   ╚═╝ ╚═╝ ╝╚╝ ═╩╝ ╩╚═  ╩                 written in Rust.
+
+.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx
+
+Repo       : https://github.com/foundry-rs/
+Book       : https://book.getfoundry.sh/                      
+Chat       : https://t.me/foundry_rs/                         
+Support    : https://t.me/foundry_support/
+Contribute : https://github.com/orgs/foundry-rs/projects/2/
+
+.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx.xOx
+
+'
+}
+
+
 main "$@" || exit 1