Small editorial change

Author: Greg Whitworth

css-tables-3/Overview.bs

@@ -423,7 +423,7 @@ spec:css21; type:property; text:max-width
 
 		<p>
 			The <dfn id="max-content-width-of-a-table">max-content width of a table</dfn> is 
-				the width required to fit all of its columns max-content widths and its undistribute spaces.
+				the width required to fit all of its columns max-content widths and its undistributable spaces.
 
 		<p>
 			If the width assigned to a table is larger than its <a href="#min-content-width-of-a-table">min-content width</a>,