Update Satin Column

_docs/003-002-satin.md

@@ -35,6 +35,9 @@ The rung method will give you more control over the way the satin column is rend
 
 [![Rungs in Action](https://edutechwiki.unige.ch/mediawiki/images/thumb/6/68/InkStitch-round-bird-2.png/300px-InkStitch-round-bird-2.png)](https://edutechwiki.unige.ch/mediawiki/images/6/68/InkStitch-round-bird-2.png)
 
+Original design by [Liv Iko](https://thenounproject.com/liv_iko/collection/birds/?i=898697) edited by [EDUTECH Wiki](https://edutechwiki.unige.ch/en/InkStitch)
+{: style="font-size: 0.5rem;"}
+
 ## Params
 
 ![Params Satin Column.jpg](/assets/images/docs/params-satincolumn.jpg)
@@ -46,7 +49,7 @@ Pull compensation|Satin stitches [pull the fabric together](/tutorials/push-pull
 Zig-Zag spacing|the peak-to-peak distance between zig-zags
 STOP after, TRIM after|[STOP after](/docs/params/#stop-after), [TRIM after](/docs/params/#trim-after)
 
-**Info:** Ink/Stitch considers each pair of Bezier curves, one at a time. It picks the longest of the two and determines how many zig-zags will be necessary to satisfy the **zig-zag spacing** setting. This makes it so that the outside of a curve will never have sparse stitching like with simple satin.<br />However, this does mean that the inside of a curve will have a higher stitch density than you specified. Be careful how you design sharp curves, because **stitching at too high a density may poke a hole in the fabric**!
+**Info:** Ink/Stitch considers each pair of Bezier curves, one at a time. It picks the longest of the two and determines how many zig-zags will be necessary to satisfy the *zig-zag spacing* setting. This makes it so that the outside of a curve will never have sparse stitching like with simple satin.<br />However, this does mean that the inside of a curve will have a higher stitch density than you specified. Be careful how you design sharp curves, because *stitching at too high a density may poke a hole in the fabric*!
 {: .notice--info }
 
 ## Underlay
@@ -58,6 +61,6 @@ This is a row of running stitch down the center of the column and back. This may
 ### Contour Underlay
 This is a row of running stitch up one side of the column and back down the other. The rows are set in from the edge of the column by an amount you specify. For small or medium width satin, this may serve well enough by itself.
 
-### ZigZag underlay
+### ZigZag Underlay
 This is essentially a lower-density satin stitch sewn to the end of the column and back to the start. Added with contour underlay, you get the "German Underlay" mentioned in the article linked above. For wide columns or challenging fabrics, you can use all three underlay types together.