feat: Flat import of markdown repo

This is a flat (without history) import of (some of) the content
from our markdown module.

We've imported this without history because the repo contains our
blog posts and showcases posts content prior to porting them to strapi.

Since this contains many images, it would balloon the size of this repo
to import the full history.

Instead, please refer to the history of the (archived) markdown repo
at: https://github.com/freesewing/markdown

markdown/dev/reference/config/ui/code/en.md

@@ -0,0 +1,10 @@
+---
+title: code
+---
+
+```js
+code: "Joost De Cock",
+```
+
+The name of the developer.
+

markdown/dev/reference/config/ui/department/en.md

@@ -0,0 +1,14 @@
+---
+title: department
+---
+
+```js
+department: "menswear",
+```
+
+One of the following:
+
+ - menswear
+ - womenswear
+ - unisex
+ - accessories

markdown/dev/reference/config/ui/design/en.md

@@ -0,0 +1,9 @@
+---
+title: design
+---
+
+```js
+design: "Joost De Cock",
+```
+
+The name of the designer.

markdown/dev/reference/config/ui/difficulty/en.md

@@ -0,0 +1,9 @@
+---
+title: difficulty
+---
+
+```js
+difficulty: 3
+```
+
+A `1` to `5` difficulty score that indicates how hard it is to make the pattern.

markdown/dev/reference/config/ui/en.md

@@ -0,0 +1,14 @@
+---
+title: UI configuration
+order: 100
+---
+
+Patterns also take these configuration options to facilitate UI integration:
+
+<ReadMore list />
+
+<Tip>
+
+UI = User Interface. Like a website or mobile app
+
+</Tip>

markdown/dev/reference/config/ui/optiongroups/advanced-option-group/en.md

@@ -0,0 +1,20 @@
+---
+title: The advanced option group
+---
+
+Naming an option group `advanced` will hide it by default from the user
+unless they enable *expert mode*.
+
+```js
+optionGroups: {
+  fit: ["chestEase", "hipsEase", "stretchFactor"],
+  style: ["armholeDrop", "backlineBend"],
+  advanced: [ "plutoniumCount" ]
+} 
+```
+
+<Tip>
+
+The `advanced` option group can also have nested groups
+
+</Tip>

markdown/dev/reference/config/ui/optiongroups/en.md

@@ -0,0 +1,29 @@
+---
+title: optionGroups
+---
+
+Organises your pattern options in groups. 
+It expects an object where the key is the group title, and the value an array of options:
+
+```js
+optionGroups: {
+  fit: ["chestEase", "hipsEase", "stretchFactor"],
+  style: [
+    "armholeDrop",
+    "backlineBend",
+    "necklineBend",
+    "necklineDrop",
+    "shoulderStrapWidth",
+    "shoulderStrapPlacement",
+    "lengthBonus"
+  ]
+} 
+```
+
+<Note>
+
+Options that are not included in the `optionGroup` configuration won't be
+exposed in the frontend and thus will be unavailable to the user.
+
+</Note>
+

markdown/dev/reference/config/ui/optiongroups/nested-optiongroups/en.md

@@ -0,0 +1,27 @@
+---
+title: Nested option groups
+---
+
+You can create sub-groups within an option group:
+
+```js
+optionGroups: {
+  style: [
+    'hemStyle',
+    'hemCurve',
+    {
+      closure: [
+        'extraTopButton',
+        'buttons',
+        'buttonFreeLength'
+      ]
+    },
+  ]
+}
+```
+
+<Warning>
+Only create subgroups one level deep. 
+We do not support groups in groups in groups.
+</Warning>
+

markdown/dev/reference/config/ui/tags/en.md

@@ -0,0 +1,9 @@
+---
+title: tags
+---
+
+```js
+tags: ["underwear", "top", "basics"],
+```
+
+A set of tags to allow filtering of patterns on the website.

markdown/dev/reference/config/ui/type/en.md

@@ -0,0 +1,12 @@
+---
+title: type
+---
+
+```js
+type: "pattern",
+```
+
+One of the following:
+
+ - pattern
+ - block