chore: improve the wording of the about page

Well, I think it's an improvement. I'm not a writer.

pages/index.html

@@ -29,9 +29,9 @@ <h1 class="logo">Chris Newton</h1>
     <article>
       <h1>About</h1>
       <p>Hi I'm Chris. I'm a software developer based in Brighton. My pronouns are he/him. Welcome to my website.</p>
-      <p>I'm mainly a JavaScript developer. Node.js and the browser. It's been my <a rel="me" href="https://www.linkedin.com/in/chrisnewtn/">career</a> for well over a decade at this point. I've seen things you wouldn't believe, etc.</p>
+      <p>My focus is JavaScript, whether Node.js or the browser. It's been my <a rel="me" href="https://www.linkedin.com/in/chrisnewtn/">career</a> for well over a decade at this point. I've seen things you wouldn't believe, etc.</p>
       <p>This site is hosted using <a href="https://pages.github.com/">GitHub Pages</a>. The DNS is handled by <a href="https://gandi.net">Gandi</a>. I don't set any cookies or monitor any traffic.</p>
-      <p>I'm writing the static site generation for this myself. You can see the code <a href="https://github.com/chrisnewtn/chrisnewtn.github.io/">here</a>. It's a work in progress and an early one at that. Hence the sign. ⬇️</p>
+      <p>You can view the source code <a href="https://github.com/chrisnewtn/chrisnewtn.github.io/">here</a>. I'm writing it in the open, both the content and the static site generator that puts it together. It's a work in progress, and an early one at that. Hence the sign.</p>
       <div class="under-construction-outer">
         <div class="under-construction">
           <div class="under-construction-inner">Under Construction</div>