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/org/docs/various/notation/grainline/de.md

@@ -0,0 +1,11 @@
+---
+title: Grainline and cut-on-fold indicator
+---
+
+Grainlines — a line that indicates the *fabric grain* — look like this:
+
+<Legend part="grainline" caption="A grainline indicator" />
+
+Cut-on-fold indicators look similar, but point towards the line on which the fabric should be folded:
+
+<Legend part="cutonfold" caption="A cut-on-fold indicator" />

markdown/org/docs/various/notation/grainline/en.md

@@ -0,0 +1,11 @@
+---
+title: Grainline and cut-on-fold indicator
+---
+
+Grainlines — a line that indicates the *fabric grain* — look like this: 
+
+<Legend part="grainline" caption="A grainline indicator" />
+
+Cut-on-fold indicators look similar, but point towards the line on which the fabric should be folded:
+
+<Legend part="cutonfold" caption="A cut-on-fold indicator" />

markdown/org/docs/various/notation/grainline/es.md

@@ -0,0 +1,11 @@
+---
+title: Grainline and cut-on-fold indicator
+---
+
+Grainlines — a line that indicates the *fabric grain* — look like this:
+
+<Legend part="grainline" caption="A grainline indicator" />
+
+Cut-on-fold indicators look similar, but point towards the line on which the fabric should be folded:
+
+<Legend part="cutonfold" caption="A cut-on-fold indicator" />

markdown/org/docs/various/notation/grainline/fr.md

@@ -0,0 +1,11 @@
+---
+title: Droit-fil et indications de coupe au-pli
+---
+
+Droit-fil— une ligne qui indique le droit-fil du tissu ** — ressemble à ceci :
+
+<Legend part="grainline" caption="A grainline indicator" />
+
+Les indicateurs de coupe au-pli sont semblables, mais pointent vers la ligne sur laquelle le tissu doit être plié :
+
+<Legend part="cutonfold" caption="A cut-on-fold indicator" />

markdown/org/docs/various/notation/grainline/nl.md

@@ -0,0 +1,11 @@
+---
+title: Draadrichting en aanduiding van de stofvouw
+---
+
+Draadrichting - een lijn die de *draadrichting van de stof* aangeeft - ziet er zo uit:
+
+<Legend part="grainline" caption="A grainline indicator" />
+
+Markeringen voor de stofvouw zien er gelijkaardig uit, maar wijzen naar de lijn waarlangs de stof gevouwen moet worden:
+
+<Legend part="cutonfold" caption="A cut-on-fold indicator" />