theme: add windy-{dark,light} themes

New sub theme base on Twilight CSS's color palette

Files added:
* themes/doom-windy-dark-theme.el
* themes/doom-windy-light-theme.el

Added meta information to:
* README.md
* doom-themes.el

Author: tasmo

README.md

@@ -144,6 +144,7 @@ welcome PRs to help us maintain and address inconsistencies in them.
 | doom-tomorrow-night               | [link](https://github.com/ChrisKempson/Tomorrow-Theme)                                 | One of the dark variants of Tomorrow (ported by [@hlissner](https://github.com/hlissner))                                         |
 | doom-vibrant                      | doom-one                                                                               | a more vibrant variant of doom-one (ported by [@hlissner](https://github.com/hlissner))                                           |
 | doom-wilmersdorf                  | [link](https://github.com/ianpan870102/wilmersdorf-emacs-theme)                        | port of Ian Pan's Wilmersdorf (ported by [@ema2159](https://github.com/ema2159))                                                  |
+| doom-windy                        | original                                                                               | based on Tailwind color palette (ported by [@tasmo](https://github.com/tasmo))                                                    |
 | doom-xcode                        | Xcode.app                                                                              | based off of Apple's Xcode Dark Theme (ported by [@kadenbarlow](https://github.com/kadenbarlow))                                  |
 | doom-zenburn                      | [link](https://github.com/bbatsov/zenburn-emacs)                                       | port of the popular Zenburn theme (ported by [@jsoa](https://github.com/jsoa))                                                    |
 

doom-themes.el

@@ -90,6 +90,7 @@
 ;;  - doom-tomorrow-night -- One of the dark variants of Tomorrow (ported by @hlissner)
 ;;  - doom-vibrant -- a more vibrant variant of doom-one (ported by @hlissner)
 ;;  - doom-wilmersdorf -- port of Ian Pan's Wilmersdorf (ported by @ema2159)
+;;  - doom-windy -- based on Tailwind color palette (ported by @tasmo)
 ;;  - doom-xcode -- based off of Apple's Xcode Dark Theme (ported by @kadenbarlow)
 ;;  - doom-zenburn -- port of the popular Zenburn theme (ported by @jsoa)
 ;;