Update FlippyWindow project page.

src/ssg/input/.templates/base-flippywindow.html.twig

@@ -9,9 +9,7 @@
 {% set metaOpengraphImage = site.urlBase ~ 'projects/flippywindow/opengraph.' ~ site.releaseTimestamp ~ '.png' %}
 
 {% block content %}
-    <p>FlippyWindow is a simple Windows
-        application that non-destructively flips any part of your
-        screen, in real-time, and using minimal resources.</p>
+    <p class="text-medium">FlippyWindow is a simple Windows application that non-destructively flips any part of your screen, in real-time, and using minimal resources.</p>
     <img
         alt="A screenshot of FlippyWindow over Adobe Photoshop."
         class="u-content__wide"

src/ssg/input/projects/flippywindow/index.md

@@ -15,12 +15,12 @@ title: 'FlippyWindow'
 
 Last time I looked, [Adobe Photoshop CC 2019][] (and later), [Clip Paint
 Studio][], [Krita][], and [PaintTool SAI][] have features that allow you
-to non-destructively change how you view an image.
+to non-destructively change how you view an image, so chances are
+FlippyWindow isn't necessary.
 
-I built FlippyWindow because, at the time, all I could do was repeatedly
-flip images the “old-fashioned” away, which made my crappy underpowered
-laptop very sad. (Plus I was curious to see if something like
-FlippyWindow was even possible.)
+I built FlippyWindow mainly to see if something like it was possible,
+and because, at the time, I could only flip images the “old-fashioned”
+way which would make my crappy underpowered laptop very sad.
 
 FlippyWindow can also help you spot visual issues in work outside of
 image editors, including animations, application user interfaces, and