Add coga SC Critical Controls. Fixes #39

Author: SteveALee

guidelines/index.html

@@ -783,6 +783,14 @@ Change on Request
 				section>
 			section>
 
+				<section class="sc">
+					<h4>Critical Controlsh4>
+					<p class="conformance-level">Ap>
+					<p class="change">Newp>
+          <p><a>Critical controlsa> or important information are <a>above the folda> and are accentuated in the <a>main modality of the contenta>.p>
+				section>
+			section>
+
 			<section class="guideline">
 				<h3>@@h3>
 				<p>Help users avoid and correct mistakes.p>
@@ -990,6 +998,10 @@ Glossary
 					ol>
 					<p>Some companies have adopted what used to be an initialism as their company name. In these cases, the new name of the company is the letters (for example, Ecma) and the word is no longer considered an abbreviation.p>
 				dd>
+        <dt><dfn>above the folddfn>dt>
+				<dd>
+          <p>positioned in the upper part of a web page and so visible without scrolling down the page in the main modality of the content.p>
+        dd>
 				<dt><dfn>accessibility supporteddfn>dt>
 				<dd>
 					<p>supported by users' <a>assistive technologiesa> as well as the accessibility features in browsers and other <a>user agentsa>p>
@@ -1157,6 +1169,11 @@ Glossary
 				<dd>
 					<p>any sequence where words and paragraphs are presented in an order that does not change the meaning of the contentp>
 				dd>
+        <dt><dfn>critical controlsdfn>dt>
+				<dd>
+          <p>controls amd features that are required to complete the main role or tasks of the user interface.p>
+        dd>
+
 				<dt><dfn>emergencydfn>dt>
 				<dd>
 					<p>a sudden, unexpected situation or occurrence that requires immediate action to preserve health, safety, or propertyp>
@@ -1277,6 +1294,10 @@ Glossary
 					<p>the two or three year period of education that begins after completion of six years of school and ends nine years after the beginning of <a>primary educationa>p>
 					<p>This definition is based on the International Standard Classification of Education [[UNESCO]].p>
 				dd>
+		<dt><dfn>main modality of contentdfn>dt>
+				<dd>
+					<p>main modality(s) considered in the design of the content.p>
+				dd>
 				<dt><dfn>mechanismdfn>dt>
 				<dd>
 					<p><a>processa> or technique for achieving a resultp>