[css-grid] Add notes about the alternate grid algos status.

Author: tabatkins

css-grid/Overview.bs

@@ -2592,6 +2592,9 @@ Grid Baselines</h3>
 <h2 id="layout-algorithm">
 Microsoft's Grid Track Sizing Algorithm</h2>
 
+	Note: We are exploring alternate ways of writing the same algorithm at the moment.
+	All three of these layout algorithms are intended to produce alternate results.
+
 <h3 id="algo-terms">
 Definition of Terms for use in Calculating Grid Track Sizes</h3>
 
@@ -3078,6 +3081,9 @@ Intrinsic Sizing</h3>
 <h2 id='tab-layout-algorithm'>
 Translated Grid Layout Algorithm</h2>
 
+	Note: We are exploring alternate ways of writing the same algorithm at the moment.
+	All three of these layout algorithms are intended to produce alternate results.
+
 <h3 id='algo-terms'>
 Definition of Terms for use in Calculating Grid Track Sizes</h3>
 
@@ -3379,9 +3385,8 @@ Process Flexible Tracks</h3>
 <h2 id='layout-algorithm-fantasai'>
 Rewritten Grid Layout Algorithm</h2>
 
-	<p class='issue'>
-		This should be functionally identical to the Microsoft algorithm.
-		If not, please let Tab and fantasai know in what cases it's not!
+	Note: We are exploring alternate ways of writing the same algorithm at the moment.
+	All three of these layout algorithms are intended to produce alternate results.
 
 	Each track has a <dfn title="minimum track size">minimum</dfn> and
 	a <dfn title="maximum track size">maximum</dfn> <i>sizing function</i>

css-grid/Overview.html

@@ -2566,6 +2566,9 @@ <h3 class="heading settled heading" data-level=9.6 id=grid-baselines><span class
 <h2 class="heading settled heading" data-level=10 id=layout-algorithm><span class=secno>10 </span><span class=content>
 Microsoft’s Grid Track Sizing Algorithm</span><a class=self-link href=#layout-algorithm></a></h2>
 
+<p class=note>	Note: We are exploring alternate ways of writing the same algorithm at the moment.
+	All three of these layout algorithms are intended to produce alternate results.
+
 <h3 class="heading settled heading" data-level=10.1 id=algo-terms0><span class=secno>10.1 </span><span class=content>
 Definition of Terms for use in Calculating Grid Track Sizes</span><a class=self-link href=#algo-terms0></a></h3>
 
@@ -3052,6 +3055,9 @@ <h3 class="heading settled heading" data-level=10.3 id=intrinsic-sizes><span cla
 <h2 class="heading settled heading" data-level=11 id=tab-layout-algorithm><span class=secno>11 </span><span class=content>
 Translated Grid Layout Algorithm</span><a class=self-link href=#tab-layout-algorithm></a></h2>
 
+<p class=note>	Note: We are exploring alternate ways of writing the same algorithm at the moment.
+	All three of these layout algorithms are intended to produce alternate results.
+
 <h3 class="heading settled heading" data-level=11.1 id=algo-terms><span class=secno>11.1 </span><span class=content>
 Definition of Terms for use in Calculating Grid Track Sizes</span><a class=self-link href=#algo-terms></a></h3>
 
@@ -3351,9 +3357,8 @@ <h3 class="heading settled heading" data-level=11.6 id=algo-flex-tracks><span cl
 <h2 class="heading settled heading" data-level=12 id=layout-algorithm-fantasai><span class=secno>12 </span><span class=content>
 Rewritten Grid Layout Algorithm</span><a class=self-link href=#layout-algorithm-fantasai></a></h2>
 
-	<p class=issue id=issue-607e19e8><a class=self-link href=#issue-607e19e8></a>
-		This should be functionally identical to the Microsoft algorithm.
-		If not, please let Tab and fantasai know in what cases it’s not!
+<p class=note>	Note: We are exploring alternate ways of writing the same algorithm at the moment.
+	All three of these layout algorithms are intended to produce alternate results.
 
 <p>	Each track has a <dfn data-dfn-type=dfn data-noexport="" id=minimum-track-size title="minimum track size">minimum<a class=self-link href=#minimum-track-size></a></dfn> and
 	a <dfn data-dfn-type=dfn data-noexport="" id=maximum-track-size title="maximum track size">maximum<a class=self-link href=#maximum-track-size></a></dfn> <a data-link-type=dfn href=#sizing-function title="sizing function">sizing function</a>
@@ -3886,10 +3891,6 @@ <h2 class="no-num heading settled" id=issues-index><span class=content>Issues In
 		What situations trigger step 3?
 
 <a href=#issue-1ef3ee57> ↵ </a></div><div class=issue>
-		This should be functionally identical to the Microsoft algorithm.
-		If not, please let Tab and fantasai know in what cases it’s not!
-
-<a href=#issue-607e19e8> ↵ </a></div><div class=issue>
 				What is this solving and is this the right solution?
 	<a href=#issue-6778f1ae> ↵ </a></div><div class=issue>This seems correct, but should be checked because it wasn’t in the original algorithm.<a href=#issue-b256823c> ↵ </a></div>