[css-grid-1][css-grid-2] Slight editorial tweak to make the 'grid' options clearer.

Author: tabatkins

css-grid-1/Overview.bs

@@ -2353,6 +2353,8 @@ The Implicit Grid</h3>
 	together with the <a>explicit grid properties</a>
 	in a single declaration.
 
+
+
 <!--
    ███    ██     ██ ████████  ███████        ████████ ████████     ███     ██████  ██    ██  ██████
   ██ ██   ██     ██    ██    ██     ██          ██    ██     ██   ██ ██   ██    ██ ██   ██  ██    ██
@@ -2611,11 +2613,17 @@ Grid Definition Shorthand: the 'grid' property</h3>
 	('grid-auto-rows', 'grid-auto-columns', and 'grid-auto-flow'),
 	in a single declaration.
 	(It does not reset the <a>gutter</a> properties.)
+
 	Its syntax matches 'grid-template',
 	plus an additional syntax form
 	for defining auto-flow grids:
 
 	<dl dfn-for=grid dfn-type=value>
+		<dt><<'grid-template'>>
+		<dd>
+			Sets the 'grid-template' longhands as as for 'grid-template',
+			and the 'grid-auto-*' longhands to their initial values.
+
 		<dt><dfn id='grid-s-auto-row'><<'grid-template-rows'>> / [ auto-flow && dense? ] <<'grid-auto-columns'>>?</dfn>
 		<dt><dfn id='grid-s-auto-column'>[ auto-flow && dense? ] <<'grid-auto-rows'>>? / <<'grid-template-columns'>></dfn>
 		<dd>

css-grid-2/Overview.bs

@@ -2508,6 +2508,8 @@ The Implicit Grid</h3>
 	together with the <a>explicit grid properties</a>
 	in a single declaration.
 
+
+
 <!--
    ███    ██     ██ ████████  ███████        ████████ ████████     ███     ██████  ██    ██  ██████
   ██ ██   ██     ██    ██    ██     ██          ██    ██     ██   ██ ██   ██    ██ ██   ██  ██    ██
@@ -2766,11 +2768,17 @@ Grid Definition Shorthand: the 'grid' property</h3>
 	('grid-auto-rows', 'grid-auto-columns', and 'grid-auto-flow'),
 	in a single declaration.
 	(It does not reset the <a>gutter</a> properties.)
+
 	Its syntax matches 'grid-template',
 	plus an additional syntax form
 	for defining auto-flow grids:
 
 	<dl dfn-for=grid dfn-type=value>
+		<dt><<'grid-template'>>
+		<dd>
+			Sets the 'grid-template' longhands as as for 'grid-template',
+			and the 'grid-auto-*' longhands to their initial values.
+
 		<dt><dfn id='grid-s-auto-row'><<'grid-template-rows'>> / [ auto-flow && dense? ] <<'grid-auto-columns'>>?</dfn>
 		<dt><dfn id='grid-s-auto-column'>[ auto-flow && dense? ] <<'grid-auto-rows'>>? / <<'grid-template-columns'>></dfn>
 		<dd>