Merge pull request #2541 from petterreinholdtsen/docs-g30-typo

Corrected typo in G30 description (i->1).

Author: hansu

docs/src/gcode/g-code.txt

@@ -937,7 +937,7 @@ if TOOL_CHANGE_AT_G30=1 is in the [EMCIO] section of the ini file.
 
 .G30 Example Line
 ----
-G30 Z2.5 (rapid to Z2.5 then to the Z location specified in #5i83)
+G30 Z2.5 (rapid to Z2.5 then to the Z location specified in #5183)
 ----
 
 It is an error if :