chore(markdown): Set pattern options titles

markdown/org/docs/patterns/sandy/options/circleratio/en.md

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+---
+title: "Circle ratio"
+---
+
 ![Circle ratio](circleratio.svg)
 
 The percent of a circle skirt. 100% makes a full circle skirt, 50% makes a half circle skirt.

markdown/org/docs/patterns/sandy/options/gathering/en.md

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+---
+title: "Gathering"
+---
+
 ![Gathering](gathering.svg)
 
 The percent by which the top of the skirt is longer than the bottom of the waistband.

markdown/org/docs/patterns/sandy/options/hemwidth/en.md

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+---
+title: "Hem width"
+---
+
 ![Hem width](hemwidth.svg)
 
 The width of the hem.

markdown/org/docs/patterns/sandy/options/lengthbonus/en.md

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+---
+title: "Length bonus"
+---
+
 ![Length bonus](lengthbonus.svg)
 
 The length of the skirt.

markdown/org/docs/patterns/sandy/options/seamlessfullcircle/en.md

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+---
+title: "Seamless full circle"
+---
+
 ![Seamless full circle](seamlessfullcircle.svg)
 
 Select 'yes' for a seamless circle, which is cut on a double fold.

markdown/org/docs/patterns/sandy/options/waistbandoverlap/en.md

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+---
+title: "Waistband overlap"
+---
+
 ![Waistband overlap](waistbandoverlap.svg)
 
 The length of the overlap between the ends of the waistband, to allow a button. 0 means no overlap, for example to place a zipper that goes all the way to the top of the waistband.

markdown/org/docs/patterns/sandy/options/waistbandposition/en.md

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+---
+title: "Waistband position"
+---
+
 ![Waistband position](waistbandposition.svg)
 
 Where the waistband sits. 0% makes it sit on the natural waist, 100% makes it sit on the hips.

markdown/org/docs/patterns/sandy/options/waistbandshape/en.md

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+---
+title: "Waistband shape"
+---
+
 ![Waistband shape](waistbandshape.svg)
 
 The shape of the waistband. Straight makes things easier, but a rounded waistband adapts to your body if you have a fair difference between waist and hips circumferences.

markdown/org/docs/patterns/sandy/options/waistbandwidth/en.md

@@ -1,3 +1,7 @@
+---
+title: "Waistband width"
+---
+
 ![Waistband width](waistbandwidth.svg)
 
 The width of the waistband