Merge pull request 'Добавить 'tg-update-notify'' (#1) from lopar-patch-1 into master

Reviewed-on: https://src.lopar.us/lopar/mikrotik/pulls/1

tg-update-notify

@@ -0,0 +1,13 @@
+## Check for update
+/system package update
+set channel=stable
+check-for-updates
+## Wait on slow connections
+:delay 5s;
+## Important note: "installed-version" was "current-version" on older Router OSes
+:if ([get installed-version] != [get latest-version]) do={ 
+   ## New version of RouterOS available, let's upgrade
+   /tool fetch url=("https://api.telegram.org/".$botID."/sendMessage\?chat_id=-***************&text=New version $[/system package update get latest-version] of RouterOS available, let's upgrade") src-address=***.***.***.* keep-result=no;
+  } else={
+  :log info ("No RouterOS upgrade found, checking this later...")
+}