DMdocs (#21103)

Progress on DMDocs. PRing progress so far so there's not one mega PR
later with 1500 affected files.

I want my goddamn highlight text on what all these goddamn procs goddamn
do goddamnit. >:(

No actual code change anywhere in this PR, only comments.

---------

Signed-off-by: Batrachophreno <Batrochophreno@gmail.com>

code/modules/mining/machine_rigpress.dm

@@ -33,7 +33,7 @@
 		icon_state = "coinpress0"
 
 /**
- *	If a compatible item is fed into the machine, begin conversion. Only allow one at a time.
+ * If a compatible item is fed into the machine, begin conversion. Only allow one at a time.
  */
 /obj/machinery/mineral/rigpress/attackby(obj/item/attacking_item, mob/user)
 	if(!pressing)