fix(hx-error): fix error message to error text

Author: Cathy Siller

docs/components/typography/index.html

@@ -279,8 +279,8 @@ <h2 id="code-block">Code Block</h2>
     </div>
   </section>
 
-  <section><!-- Error Message -->
-    <h2 id="error-message">Error Message</h2>
+  <section><!-- Error Text -->
+    <h2 id="error-text">Error Text</h2>
     <p>
       <small>Added: v0.4.0</small>
     </p>

docs/components/typography/test.html

@@ -12,7 +12,7 @@
   </section>
 
   <section>
-    <h2>Error Message</h2>
+    <h2>Error Text</h2>
     <div data-dom-diff="hxError-with-dom-line-breaks">
       <hx-error>
         Line Breaks