reference: document movement speed adjustment tool

also update changelog

CHANGELOG.md

@@ -12,6 +12,7 @@ Note to self: See the bottom of this file for the release template text.
 - Added [`//ngroups`](https://worldeditadditions.mooncarrot.space/Reference/#ngroups), which lists the groups that a given node is a member of. Useful when paired with [`//nodeapply`](https://worldeditadditions.mooncarrot.space/Reference/#nodeapply)!
 - Added [`//rotate+`](https://worldeditadditions.mooncarrot.space/Reference/#rotate) to rotate regions through arbitrary series of potentially non-axis-aligned rotations.
 - Added [`//speed`](https://worldeditadditions.mooncarrot.space/Reference/#rotate) to adjust your own movement speed
+	- Also added an associated [movement speed adjustment tool](https://worldeditadditions.mooncarrot.space/Reference/#movement), which looks like this: ![A picture of the move speed adjustment tool. It looks like a monarch butterfly.](https://raw.githubusercontent.com/sbrl/Minetest-WorldEditAdditions/dev/worldeditadditions_farwand/textures/worldeditadditions_movement.png)
 
 ### Bugfixes and changes
 - Don't warn on failed registration of `//flora` → [`//bonemeal`](https://worldeditadditions.mooncarrot.space/Reference/#bonemeal) if the `bonemeal` mod isn't installed (e.g. in MineClone2) - thanks @VorTechnix in #106

Chat-Command-Reference.md

@@ -1541,6 +1541,15 @@ Prevents the execution of a command if it could potentially affect a large numbe
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+### Movement speed adjustment tool
+The movement speed adjustment tool, as the name suggests, adjusts your local player movement speed. It looks like this: ![A picture of the move speed adjustment tool. It looks like a monarch butterfly.](https://raw.githubusercontent.com/sbrl/Minetest-WorldEditAdditions/dev/worldeditadditions_farwand/textures/worldeditadditions_movement.png).
+
+Primary (left) clicking will increase your movement speed, and secondary (right) clicking will decrease it in x0.5 increments, down to a minimum of x0.5.
+
+Note this only affects **you**, and **not any other player**.
+
+See also [`//speed`](#speed).
+
 ### Far Wand
 The far wand (`worldeditadditions:farwand`) is a variant on the traditional WorldEdit wand (`worldedit:wand`). It looks like this: ![A picture of the far wand](https://raw.githubusercontent.com/sbrl/Minetest-WorldEditAdditions/main/worldeditadditions_farwand/textures/worldeditadditions_farwand.png)