Dyn 6009 extended node help missing7

doc/distrib/NodeHelpFiles/Autodesk.DesignScript.Geometry.NurbsSurface.ByPointsTangents.md

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 ## In Depth
-Creates a NurbsSurface with specified interpolated points and U and V degrees. The resultant surface will pass through all of the points. The number of tangents must match the number of points in the corresponding direction. The resultant surface will be degree 3 in both the U and V direction.
-___
-## Example File
+`NurbsSurface.ByPointsTangents` creates a smooth surface that passes through each of a grid (list of lists) of points. Specify tangent vectors to control the surface direction at the edges. The number of tangents must match the number of points in the corresponding direction (U - number of lists, V - number of points in each list).
 
+In the example below, a NurbsSurface is created from given points and U and V tangents.
 
+___
+## Example File
 
+![NurbsSurface.ByPointsTangents](./Autodesk.DesignScript.Geometry.NurbsSurface.ByPointsTangents_img.jpg)

doc/distrib/NodeHelpFiles/Autodesk.DesignScript.Geometry.PolySurface.ByJoinedSurfaces.md

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 ## In Depth
-Solid by Joined Surfaces takes a list of surfaces as an input and will return a single solid defined by the surfaces. The surfaces must define a closed surface. In the example below, we start with a circle as a base geometry. The circle is patched to create a surface, and that surface is translated in the z-direction. We then extrude the circle to produce the sides. List.Create is used to make a list consisting of the base, side, and top surfaces, and then we use ByJoinedSurfaces to turn the list into a single closed solid.
+`PolySurface.ByJoinedSurfaces` returns a new PolySurface joined from a list of surfaces. 
+
+In the example below, two surface patches and an extrusion are joined into a PolySurface resembling a cylinder.
+
 ___
 ## Example File
 

doc/distrib/NodeHelpFiles/Autodesk.DesignScript.Geometry.PolySurface.ByLoft(crossSections).md

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 ## In Depth
-Surface ByLoft with cross sections takes a list of curves as an input. It will produce a surface by lofting between the list of curves in order. In the example below we create two curves, a line and a sine curve. We use List.Create to combine these two curves into a list, which we use as an input for Surface ByLoft. The result is a surface that is lofted between a sine curve on one side, and a line on the other.
+`PolySurface.ByLoft (crossSections)` returns a new PolySurface by lofting between curves in a list. 
+
+In the example below, a PolySurface is returned from lofting between two circles.
+
 ___
 ## Example File