Also add curve/smooth (w3c#11471)

Author: noamr

css-shapes-2/Overview.bs

@@ -273,8 +273,8 @@ The ''shape()'' Function</h4>
 			instead of a <<length-percentage>>,
 			would draw a line to that <<position>>, with the <<position>>'s horizontal component remaining the same as the starting point.
 
-		<dt><dfn><<curve-command>></dfn> = <dfn value>curve</dfn> [ [ to <<position>> && with <<control-point>> [ / <<control-point>> ]? ]
-						| [ by <<coordinate-pair>> && with <<relative-control-point>> [ / <<relative-control-point>> ]? ] ]
+		<dt><dfn><<curve-command>></dfn> = <dfn value>curve</dfn> [ [ to <<position>> with <<control-point>> [ / <<control-point>> ]? ]
+						| [ by <<coordinate-pair>> with <<relative-control-point>> [ / <<relative-control-point>> ]? ] ]
 		<dd>
 			Adds a Bézier curve command to the list of path data commands,
 			ending at the point specified by the <<position>> following the ''shape()/to'' keyword,
@@ -286,8 +286,8 @@ The ''shape()'' Function</h4>
 			if two  <<control-point>>s or <<relative-control-point>>s are provided,
 			it specifies a <a href="https://www.w3.org/TR/SVG/paths.html#PathDataCubicBezierCommands">cubic curve</a>.
 
-		<dt><dfn><<smooth-command>></dfn> = <dfn value>smooth</dfn> [ [ to <<position>> && [with <<control-point>> ]? ]
-						| [ by <<coordinate-pair>> && [ with <<relative-control-point>> ]? ] ]
+		<dt><dfn><<smooth-command>></dfn> = <dfn value>smooth</dfn> [ [ to <<position>> [with <<control-point>> ]? ]
+						| [ by <<coordinate-pair>> [ with <<relative-control-point>> ]? ] ]
 		<dd>
 			Adds a smooth Bézier curve command to the list of path data commands,
 			ending at the point specified by the <<position>> following the ''shape()/to'' keyword, or the <<coordinate-pair>> following the ''shape()/by'' keyword, as specified by <<command-end-point>>.