authoring/features/Connection.md

@@ -28,6 +28,7 @@ We're using quadratic B-splines for fitting the desired curve.
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 ## Interpolation Steps
-Building a *Bézier* spline from a single curve requires a high degree curve to accurately fit a complex shape. Quadratic B-splines however, split this process into multiple *quadratic* sub-splines (piecewise approach). The optional **`interpolationSteps`** tag allows controlling the number of interpolation steps being used. Of omitted, this property defaults to **10**. 
+Building a *Bézier* spline from a single curve requires a high degree curve to accurately fit a complex shape. Quadratic B-splines however, split this process into multiple *quadratic* sub-splines (piecewise approach). The optional **`interpolationSteps`** tag allows controlling the number of interpolation steps being used. If omitted, this property defaults to **10**. 
 
-## Control Points
+## Control Points
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+Control points are a set of points used to determine the shape of the spline curve. The spline shown in Fig. 2 uses two control points, the first located at x<sub>1</sub>=0.5 and y<sub>1</sub>=0 and the second at x<sub>2</sub>=0.5 and y<sub>2</sub>=1
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