[Keyboard] Squiggle (#9387)

* new keyboard for squiggle.

* added pic and other layout.

* updated readme.

* following drashna's suggestions.

* removed an empty line and right hand as master.

* following fauxpark's suggestions.

* following manna-harbour's suggestions.

* trying to satisfy PR Lint keyboards

* manna-harbour forgot to add it.

* following fauxparx's suggestions.

* following fauxpark's suggestions.

* following fauxpark's suggestions.'
'

* following fauxpark's suggestions.

* following fauxpark''s suggestions.

* upated info.json to represent the actual layouts.

* following noroadsleft's suggestions.

keyboards/squiggle/readme.md

@@ -0,0 +1,21 @@
+# squiggle
+
+![squiggle](https://i.imgur.com/5UhvDsjl.jpg)
+
+It's a keyboard family which has the following requirements:
+
+-  5 columns per hand.
+-  At most 3 keys for each side's thumb row.
+-  No numrow.
+-  Split.
+-  Symmetric.
+
+* Keyboard Maintainer: [ibnuda](https://github.com/ibnuda)
+* Hardware Supported: Atmega32u4.
+* Hardware Availability: [shop](https://dactyl.bigcartel.com/product/squiggle-keyboard-kit) or [repo](https://github.com/ibnuda/squiggle).
+
+Make example for this keyboard (after setting up your build environment):
+
+    make squiggle:default
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).