Fixed a small typo (cmss13-devs#6403)

# About the pull request

Fixed a small typo - "Inmediately" -> "Immediately"

# Explain why it's good for the game

Less typos more good.


# Testing Photographs and Procedure

Check the Admin Game Panel.

<details>
<summary>Screenshots & Videos</summary>

Put screenshots and videos here with an empty line between the
screenshots and the `<details>` tags.

</details>


# Changelog
:cl: ThePiachu
spellcheck: Fixed a typo in Admin Game Panel
/:cl:

code/modules/admin/admin.dm

@@ -141,7 +141,7 @@
 		<A HREF='?_src_=admin_holder;[HrefToken(forceGlobal = TRUE)];quick_create_object=1'>Quick Create Object</A><br>
 		<A HREF='?_src_=admin_holder;[HrefToken(forceGlobal = TRUE)];create_turf=1'>Create Turf</A><br>
 		<A HREF='?_src_=admin_holder;[HrefToken(forceGlobal = TRUE)];create_mob=1'>Create Mob</A><br>
-		<A HREF='?_src_=admin_holder;[HrefToken(forceGlobal = TRUE)];send_tip=1'>Inmediately Send Tip</A><br>
+		<A HREF='?_src_=admin_holder;[HrefToken(forceGlobal = TRUE)];send_tip=1'>Immediately Send Tip</A><br>
 		"}
 
 	show_browser(usr, dat, "Game Panel", "admin2", "size=210x280")