Add issue numbers

css-borders-4/Overview.bs

@@ -357,7 +357,7 @@ Like 'border-radius', 'corner-shape' clips elements according to the [=overflow=
 Since stroking a superellipse accurately may be computationally intensive, user agents may approximate the path using bezier curves,
 as well as account for sharp edges and overlaps.
 
-Issue: describe the rendering requirements in more detail.
+Issue <a href="https://github.com/w3c/csswg-drafts/issues/11610">#11610</a>: describe the rendering requirements in more detail.
 
 <h4 id=corner-shape-value>
 'corner-shape' values</h4>
@@ -368,22 +368,26 @@ Issue: describe the rendering requirements in more detail.
 
 	<dl dfn-type="value" dfn-for="corner-shape-value">
 		<dt><dfn>''round''</dfn>
-		<dd>Border radii define a convex elliptical curve at the corner. Equivalent to <css>superellipse(2)</css>.
+		<dd>
+			Border radii define a convex elliptical curve at the corner. Equivalent to <css>superellipse(2)</css>.
+
+			Note: this is the initial value of 'corner-shape' properties, as elements with 'border-radius' would be rounded.
+
 		<dt><dfn>''scoop''</dfn>
 		<dd>Border radii define a concave elliptical curve at the corner. Equivalent to <css>superellipse(0.5)</css>.
 		<dt><dfn>''bevel''</dfn>
 		<dd>Border radii define a diagonal slice at the corner. Equivalent to <css>superellipse(1)</css>.
 		<dt><dfn>''notch''</dfn>
-		<dd>Border radii define a concave angle at the corner. Equivalent to <css>superellipse(0)</css>.
+		<dd>Border radii define a concave 90deg angle at the corner. Equivalent to <css>superellipse(0)</css>.
 		<dt><dfn>''straight''</dfn>
-		<dd>Border radii define a convex angle at the corner.
+		<dd>Border radii define a convex 90deg angle at the corner.
 			This would have the same visual effect as a 'border-radius' of 0. This is different from having a 'border-radius' of 0 when animating.
 			Equivalent to <css>superellipse(infinity)</css>.
 		<dt><dfn>''squircle''</dfn>
 		<dd>Border radii define a convex curve between an ellipse and an convex angle, equivalent to <css>superellipse(4)</css>.
 	</dl>
 
-	Issue: resolve on ''straight'' vs <css>none</css>.
+	Issue <a href="https://github.com/w3c/csswg-drafts/issues/11607">#11607</a>: resolve on ''straight'' vs <css>none</css>.
 
 	The <dfn>superellipse()</dfn> function describes the curvature of the corner.
 	It accept a <<number>> <dfn>superellipse exponent</dfn>, which defines the curvature of the corner, or the exponent of the formula.
@@ -479,7 +483,7 @@ Shaping all the corners at once</h4>
 <h4 id=corner-shape-interpolation>
 Interpolating corner shapes</h4>
 
-Since a <<corner-shape-value>> can always be expressed a ''superellipse()'' with an [=superellipse exponent=] variable, interpolating between two
+Since a <<corner-shape-value>> can always be expressed by a ''superellipse()'' with an [=superellipse exponent=] variable, interpolating between two
 <<corner-shape-value>>s is done by interpolating the [=superellipse exponent=] itself.
 Since it's an exponent, interpolating it linearly would result in an effect where concave corners interpolate at a much higher velocity than convex corners.
 To balance that, the <dfn>superellipse interpolation</dfn> formula describes how a [=superellipse exponent=] is converted to a value between 0 and 1, and vice versa:
@@ -496,7 +500,7 @@ To convert a <<number [0,1]>> |interpolationValue| back to a [=superellipse expo
 	1. Return <code>ln(0.5)/ln(|interpolationValue|)</code>.
 </div>
 
-Issue: resolve on this or another interpolation formula.
+<a href="https://github.com/w3c/csswg-drafts/issues/11608">Issue #11608</a>: resolve on this or another interpolation formula.
 
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