Revise formatting and text of about page

Author: wnodom

src/app/about/about.component.html

@@ -1,24 +1,36 @@
 <h2>About this app</h2>
 
 <p>
-  This is a set of simple CSS Grid examples
-  <a href="http://billodom.com/">I</a>
-  originally created for a talk at the 2018
-  <a href="https://craft-conf.com/">Craft Conference</a>
-  called "CSS Grid: Get ready to fall in love" (although
-  I've added a few things since then).
+  This is a set of simple CSS Grid examples I
+  (<a target="_blank" href="http://www.billodom.com/">Bill Odom</a>)
+  originally created for a talk called
+  "CSS Grid: Get ready to fall in love" at the 2018
+  <a target="_blank" href="https://craft-conf.com/">Craft Conference</a>
+  (although I've added a few things since then).
+  You can find the latest version here:
 </p>
 
+<blockquote>
+  <a target="_blank" href="https://github.com/wnodom/css-grid-playground">
+    CSS Grid Playground on GitHub
+  </a>
+</blockquote>
+
 <p>
-  Note: The examples are hosted in an Angular app that uses Sass, but that's
-  just to make some things easier to build or demonstrate. None of the CSS Grid
-  concepts are specific to Angular or Sass.
+  If you'd like to try the application without installing it locally,
+  you can run it entirely within your browser via StackBlitz:
 </p>
 
-<p>
-  You can find the latest version here:
-  <a target="_blank" href="https://github.com/wnodom/css-grid-playground">
-    CSS Grid Playground on Github
+<blockquote>
+  <a target="_blank" href="https://stackblitz.com/github/wnodom/css-grid-playground">
+    CSS Grid Playground on StackBlitz
   </a>
-</p>
+</blockquote>
 
+<p>
+  Note: While the examples are hosted in an
+  <a target="_blank" href="https://angular.io">Angular</a> app that uses
+  <a target="_blank" href="https://sass-lang.com/">Sass</a>, that's
+  just to make some things easier to build or demonstrate. None of the CSS Grid
+  concepts are specific to Angular or Sass.
+</p>

src/app/about/about.component.scss

@@ -2,4 +2,3 @@
   display: block;
   padding: 20px;
 }
-