prepare documentation

87347684 · Dealga McArdle · acc4a392 · 87347684 · 87347684
--- a/docs/nodes/CAD/CAD_index.rst
+++ b/docs/nodes/CAD/CAD_index.rst
@@ -8,6 +8,7 @@ CAD
   crop_mesh_2d
   edges_intersect_mk3
   edges_to_faces_2d
+   triangle_fill_scanline
   merge_mesh_2d
   merge_mesh_2d_lite
   inset_special_mk2
--- a/docs/nodes/CAD/triangle_fill_scanline.rst
+++ b/docs/nodes/CAD/triangle_fill_scanline.rst
+triangle fill scanline
+======================
+
+This node's primary purpose is to provide a Node version of *bmesh.ops.triangle_fill*. The essence of this node is
+similar to `Edges To Faces` node, with the exception that when no edges are connected, the node will assume that the input
+consists of closed rings, and it will internally generate the correct Edge indices for the provided Vertex lists.
+
+- this is useful for fill complex islands/rings of polylines, as you might find in GIS content or Typography Glyph outlines.
+- has built in option to Merge the incoming meshes.
+- for complex and irregular Ngons this node will generate superior Polygons compared with UVConnection node.
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