Added custom header option

example_configs/httpcheck_telegram

@@ -1,3 +1,4 @@
+HEADER="HTTP/S Checker"             #Header for the start of outgoing messages from the bot
 CHATID="5555555"                    #Chat ID for the Telegram room/conversation with bot
 KEY="THISISAUNIQUEANDPRIVATEKEY"    #Your bot's API key
 CHKLIST="${HOME}/.site_check"       #A file containing a list of sites/URLs to check

http_check_telegram

@@ -58,7 +58,7 @@ print_time() {
 }
 
 # Prepare message header
-MSG='HTTP/S Problems Found:'
+MSG="${HEADER}%0AProblems Found:"
 FAILURE=false
 
 # Check HTTP codes