Send users to the GitHub page via webamp.org

At some point in the future github may not be the canonical URL for
webamp. However, people are integrating Webamp all the time and very
likely won't ever upgrade.

It's better if the url baked into the binary we distribute is under our
control so that it can be pointed somewhere else in the future.

It's also an open question if GitHub is the best place to send users.
Non technical users may get very confused.

js/components/MainWindow/MainContextMenu.tsx

@@ -43,7 +43,7 @@ type Props = StateProps & DispatchProps & OwnProps;
 const MainContextMenu = (props: Props) => (
   <React.Fragment>
     <LinkNode
-      href="https://github.com/captbaritone/webamp"
+      href="https://webamp.org/about"
       target="_blank"
       label="Webamp..."
     />

js/components/MainWindow/__snapshots__/index.test.js.snap

@@ -472,7 +472,7 @@ exports[`MainWindow renders to snapshot 1`] = `
     </div>
   </div>
   <a
-    href="https://github.com/captbaritone/webamp"
+    href="https://webamp.org/about"
     id="about"
     target="blank"
     title="About"

js/components/MainWindow/index.tsx

@@ -161,7 +161,7 @@ export class MainWindow extends React.Component<Props> {
         <a
           id="about"
           target="blank"
-          href="https://github.com/captbaritone/webamp"
+          href="https://webamp.org/about"
           title="About"
         />
       </DropTarget>

netlify.toml

@@ -5,4 +5,7 @@
 # A short URL for listeners of https://changelog.com/podcast/291
 [[redirects]]
   from = "/changelog"
-  to = "/#%7B\"initialTracks\"%3A%5B%7B\"url\"%3A\"https%3A%2F%2Fcdn.changelog.com%2Fuploads%2Fpodcast%2F291%2Fthe-changelog-291.mp3\"%2C\"metaData\"%3A%7B\"artist\"%3A\"Changelog%20Podcast\"%2C\"title\"%3A\"Winamp2-js\"%7D%7D%5D%7D"
+  to = "/#%7B\"initialTracks\"%3A%5B%7B\"url\"%3A\"https%3A%2F%2Fcdn.changelog.com%2Fuploads%2Fpodcast%2F291%2Fthe-changelog-291.mp3\"%2C\"metaData\"%3A%7B\"artist\"%3A\"Changelog%20Podcast\"%2C\"title\"%3A\"Winamp2-js\"%7D%7D%5D%7D"
+[[redirects]]
+  from = "/about"
+  to = "https://github.com/captbaritone/webamp"