add Point.dist docs and unignore its folder

.gitignore

@@ -91,3 +91,6 @@ scripts/verdaccio.sh
 
 # Local Netlify folder
 .netlify
+
+# Don't ignore the specific Points.dist() docs folder
+!markdown/dev/reference/api/point/dist

markdown/dev/reference/api/point/dist/en.md

@@ -0,0 +1,33 @@
+---
+title: Point.dist()
+---
+
+A point's `dist()` method returns the distance (in mm) between this point and the point you pass it.
+
+```js
+float point.dist(Point point)
+```
+
+<Example
+  part="point_dist"
+  caption="An example of the Point.dist() method"
+/>
+
+```js
+let { Point, points, Path, paths } = part.shorthand()
+
+points.from = new Point(10, 10)
+points.to = new Point(80, 70)
+
+points.text = points.from
+  .shiftFractionTowards(points.to, 0.6)
+  .attr('data-text', points.from.dist(points.to) + 'mm')
+  .attr('data-text-class', 'text-sm fill-note center')
+
+paths.line = new Path()
+  .move(points.from)
+  .line(points.to)
+  .attr('class', 'dashed')
+
+return part
+```