[css-grid] typo

Author: tabatkins

css-grid/Overview.bs

@@ -2348,7 +2348,7 @@ Grid Item Placement Algorithm</h3>
 
 		The <dfn export local-title="cursor">auto-placement cursor</dfn> defines the current “insertion point” in the grid,
 		specified as a pair of row and column <a>grid lines</a>.
-		Initially the <a>auto-placement cursor</a> at is specified with a row and column position both equal to 1.
+		Initially the <a>auto-placement cursor</a> is specified with a row and column position both equal to 1.
 
 		The 'grid-auto-flow' value in use determines how to position the items:
 

css-grid/Overview.html

@@ -4203,7 +4203,7 @@ <h3 class="heading settled" data-level="8.5" id="auto-placement-algo"><span clas
 
           <p>The <dfn data-dfn-type="dfn" data-export="" data-local-title="cursor" id="auto-placement-cursor">auto-placement cursor<a class="self-link" href="#auto-placement-cursor"></a></dfn> defines the current “insertion point” in the grid,
 specified as a pair of row and column <a data-link-type="dfn" href="#grid-line">grid lines</a>.
-Initially the <a data-link-type="dfn" href="#auto-placement-cursor">auto-placement cursor</a> at is specified with a row and column position both equal to 1.</p>
+Initially the <a data-link-type="dfn" href="#auto-placement-cursor">auto-placement cursor</a> is specified with a row and column position both equal to 1.</p>