Remove gitingoretemplate since it was just the one line

src/app.rs

@@ -8,7 +8,7 @@ use colored::Colorize;
 use glob::glob;
 
 const MAIN_C: &str = include_str!("templates/main.c");
-const GITIGNORE: &str = include_str!("templates/gitignoretemplate");
+const GITIGNORE: &str = "target/";
 
 #[derive(clap::Parser)]
 #[clap(version)]