feat(cli): use checkVersion function

This commit modifies the main.go and cli.go files to use the previously defined CheckVersion function. Now, whenever the main function is called, it automatically checks for available updates and prompts the user for an update.

cli/cli.go

@@ -83,7 +83,7 @@ func CheckVersion() {
 	onlineVersion := strings.TrimPrefix(release.TagName, "v")
 
 	if onlineVersion != globals.Version {
-		fmt.Printf("A new version (%s) of mdpaper is available! Run 'go install github.com/Sett17/mdpaper/v2@{%s}' to update.\n", release.TagName, release.TagName)
+		fmt.Printf("A new version (%s) of mdpaper is available! Run \ngo install github.com/Sett17/mdpaper/v2@{%s}\n to update.\n", release.TagName, release.TagName)
 	}
 }
 

globals/version.go

@@ -1,3 +1,3 @@
 package globals
 
-const Version = "2.7.5"
+const Version = "2.7.6"

main.go

@@ -149,4 +149,5 @@ func main() {
 
 	cli.Warning("Please look over the PDF yourself and make sure that it is correct.\nmdpaper is not responsible for the correctness of the output.")
 	println()
+	cli.CheckVersion()
 }