Fix typo in hand wiring guide (#11388)

ridid -> rigid

docs/hand_wire.md

@@ -78,7 +78,7 @@ Established materials and techniques include:
 | Short lengths of wire | [u/xicolinguada's ortho build](https://www.reddit.com/r/MechanicalKeyboards/comments/c39k4f/my_first_hand_wired_keyboard_its_not_perfect_but/) | Easier to strip the wire | More difficult to place | ![individual wire lengths](https://i.imgur.com/mBe5vkL.jpg)
 | Magnet/Enamelled wire | [Brett Kosinski's handwired alpha](http://blog.b-ark.ca/Blog-2019-01-27) and [fknraiden's custom board](https://geekhack.org/index.php?topic=74223.0) | Can be directly soldered onto (insulation burns off with heat) | Appearance? | ![Magnet wire](https://i.imgur.com/b4b7KDb.jpg)
 | Bending the legs of the diodes for the rows | [Matt3o's Brownfox](https://deskthority.net/viewtopic.php?f=7&t=6050) | Fewer solder joints required | Uninsulated | ![Bent diode legs](https://i.imgur.com/aTnG8TV.jpg)
-| Using ridid wiring (e.g. brass tube) | [u/d_stilgar's invisible hardline](https://www.reddit.com/r/MechanicalKeyboards/comments/8aw5j2/invisible_hardline_keyboard_progress_update_april/) and [u/jonasfasler's first attempt](https://www.reddit.com/r/MechanicalKeyboards/comments/de1jyv/my_first_attempt_at_handwiring_a_keyboard/) | Very pretty | More difficult. No physical insulation | ![Hardline hand wire](https://i.imgur.com/CnASmPo.jpg)
+| Using rigid wiring (e.g. brass tube) | [u/d_stilgar's invisible hardline](https://www.reddit.com/r/MechanicalKeyboards/comments/8aw5j2/invisible_hardline_keyboard_progress_update_april/) and [u/jonasfasler's first attempt](https://www.reddit.com/r/MechanicalKeyboards/comments/de1jyv/my_first_attempt_at_handwiring_a_keyboard/) | Very pretty | More difficult. No physical insulation | ![Hardline hand wire](https://i.imgur.com/CnASmPo.jpg)
 | Bare wire with insulation added after (e.g. kapton tape) | [Matt3o's 65% on his website](https://matt3o.com/hand-wiring-a-custom-keyboard/) | Easier (no wire stripping required) | Not as attractive | ![Bare wire](https://i.imgur.com/AvXZShD.jpg)
 | Copper tape | [ManuForm Dactyl](https://github.com/tshort/dactyl-keyboard) | Very easy | Only really works when your plate/case aligns with the bottom of your switches | ![Copper tape](https://i.imgur.com/RFyNMlL.jpg)