fix(docs): utils.curvesIntersect() has 3 different returns, not 2

markdown/dev/reference/api/utils/curvesintersect/en.md

@@ -8,17 +8,23 @@ described by 4 points each.
 ## Signature
 
 ```js
-array | false utils.curvesIntersect(
-  Point startA, 
+array | Point | false utils.curvesIntersect(
+  Point startA,
   Point Cp1A,
   Point Cp2A,
   Point endA,
-  Point startB, 
+  Point startB,
   Point Cp1B,
   Point Cp2B,
   Point endB)
 ```
 
+This returns `false` if no intersections are found,
+a [Point](/reference/api/point) object if
+a single intersection is found, and an array
+of [Point](/reference/api/point) objects if
+multiple intersections are found.
+
 ## Example
 
 <Example caption="A Utils.curvesIntersect() example">
@@ -29,7 +35,7 @@ array | false utils.curvesIntersect(
   points.Acp = new Point(310, 40)
   points.B = new Point(110, 70)
   points.Bcp = new Point(-210, 40)
-  
+
   points.C = new Point(20, -5)
   points.Ccp = new Point(60, 300)
   points.D = new Point(100, 85)
@@ -40,8 +46,8 @@ array | false utils.curvesIntersect(
   paths.curveB = new Path()
     .move(points.C)
     .curve(points.Ccp, points.Dcp, points.D)
-  
-  for (const p of utils.curvesIntersect(
+
+  const intersections = utils.curvesIntersect(
     points.A,
     points.Acp,
     points.Bcp,
@@ -50,8 +56,15 @@ array | false utils.curvesIntersect(
     points.Ccp,
     points.Dcp,
     points.D
-  )) {
-    snippets[getId()] = new Snippet("notch", p)
+    )
+
+  if (intersections) {
+    if (intersections instanceof Array) {
+      for (const p of intersections)
+        snippets[getId()] = new Snippet('notch', p)
+    } else {
+      snippets[getId()] = new Snippet('notch', intersections)
+    }
   }
 
   return part