Updated Automatically reuse Repel (markdown => rest)

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-Starting in B2/W2, when a Repel, Super Repel, or Max Repel expires and you have another one of the same type, the "Repel's effect wore off…" message will be followed by the option to use another.
-
-Implementing this feature in Gen 2 is relatively simple, but unlike "adding a new X by editing constants/X_constants.asm and data/X/\*.asm", it involves a variety of different files, including asm, RAM, event scripts, and text.
-
-## Contents
-
-1. [Add space in WRAM and SRAM for the type of Repel used](#1-add-space-in-wram-and-sram-for-the-type-of-repel-used)
-2. [Store the type when a Repel is used](#2-store-the-type-when-a-repel-is-used)
-3. [Check if you have more of the last-used type when one wears off](#3-check-if-you-have-more-of-the-last-used-type-when-one-wears-off)
-4. [Ask whether to use another Repel, and do so, if applicable](#4-ask-whether-to-use-another-repel-and-do-so-if-applicable)
-5. [Define the "Use another?" message](#5-define-the-use-another-message)
-
-
-## 1. Add space in WRAM and SRAM for the type of Repel used
-
-There's already this line in [wram.asm](../blob/master/wram.asm):
-
-```asm
-wRepelEffect:: db ; If a Repel is in use, it contains the nr of steps it's still active
-```
-
-It's between the `wPlayerData` and `wPlayerDataEnd` labels. That means it's part of the saved data, so resetting the game will still remember how many Repel steps you have left.
-
-We need to add a `wRepelType` byte that works the same way. It's just one byte since it stores the item ID. There's free space nearby, so let's use that:
-
-```diff
- wLuckyNumberShowFlag:: db ; dc9d
--	ds 1
-+wRepelType:: db
- wLuckyIDNumber:: dw ; dc9f
-
- wRepelEffect:: db ; If a Repel is in use, it contains the nr of steps it's still active
- wBikeStep:: dw
- wKurtApricornQuantity:: db
-```
-
-
-## 2. Store the type when a Repel is used
-
-The file that defines item effects is, predictably, [engine/items/item_effects.asm](../blob/master/engine/items/item_effects.asm). It turns out that Repel, Super Repel, and Max Repel all use the same code, so we don't have to write anything three times.
-
-```diff
- SuperRepelEffect:
- 	ld b, 200
- 	jr UseRepel
-
- MaxRepelEffect:
- 	ld b, 250
- 	jr UseRepel
-
- RepelEffect:
- 	ld b, 100
-
- UseRepel:
- 	ld a, [wRepelEffect]
- 	and a
- 	ld hl, TextJump_RepelUsedEarlierIsStillInEffect
- 	jp nz, PrintText
-
- 	ld a, b
- 	ld [wRepelEffect], a
-+	ld a, [wCurItem]
-+	ld [wRepelType], a
- 	jp UseItemText
-
- TextJump_RepelUsedEarlierIsStillInEffect:
- 	; The REPEL used earlier is still in effect.
- 	text_far Text_RepelUsedEarlierIsStillInEffect
- 	text_end
-```
-
-
-## 3. Check if you have more of the last-used type when one wears off
-
-Edit [engine/overworld/events.asm](../blob/master/engine/overworld/events.asm):
-
-```diff
- DoRepelStep:
- 	ld a, [wRepelEffect]
- 	and a
- 	ret z
-
- 	dec a
- 	ld [wRepelEffect], a
- 	ret nz
-
-+	ld a, [wRepelType]
-+	ld [wCurItem], a
-+	ld hl, wNumItems
-+	call CheckItem
- 	ld a, BANK(RepelWoreOffScript)
- 	ld hl, RepelWoreOffScript
-+	jr nc, .got_script
-+	ld a, BANK(UseAnotherRepelScript)
-+	ld hl, UseAnotherRepelScript
-+.got_script
- 	call CallScript
- 	scf
- 	ret
-```
-
-Note that `UseAnotherRepelScript` hasn't been defined yet, so we'll do that next.
-
-
-## 4. Ask whether to use another Repel, and do so, if applicable
-
-Edit [engine/events/repel.asm](../blob/master/engine/events/repel.asm):
-
-```diff
- RepelWoreOffScript::
- 	opentext
- 	writetext .text
- 	waitbutton
- 	closetext
- 	end
-
- .text
- 	; REPEL's effect wore off.
- 	text_far _RepelWoreOffText
- 	text_end
-
-+UseAnotherRepelScript::
-+	opentext
-+	writetext .text
-+	yesorno
-+	iffalse .done
-+	callasm DoItemEffect
-+.done
-+	closetext
-+	end
-+
-+.text:
-+	text_far _UseAnotherRepelText
-+	text_end
-```
-
-Again, we have not yet defined `_UseAnotherRepelText`, so let's finish up with that.
-
-
-## 5. Define the "Use another?" message
-
-Edit [data/text/common_1.asm](../blob/master/data/text/common_1.asm):
-
-```diff
- _RepelWoreOffText::
- 	text "REPEL's effect"
- 	line "wore off."
- 	done
-
-+_UseAnotherRepelText::
-+	text "REPEL's effect"
-+	line "wore off."
-+
-+	para "Use another?"
-+	done
-```
-
-Finally, the feature works!
-
-![Screenshot](screenshots/use-another-repel.png)