Update tagline to "A keyboard first calendar TUI"

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: sovanesyan

docs/index.html

@@ -4,7 +4,7 @@
   <meta charset="utf-8">
   <meta name="viewport" content="initial-scale=1, width=device-width">
   <title>Calendarchy — Terminal Calendar</title>
-  <meta name="description" content="A keyboard-first terminal calendar.">
+  <meta name="description" content="A keyboard first calendar TUI.">
   <style>
     @font-face {
       font-display: swap;
@@ -285,7 +285,7 @@
 <span class="a">███   ███ ███   ███ ███       ███       ███   ███ ███   ██▀  </span><span class="b">███   ███ ███   ███ ███   ███ ███   ███    ███   </span>
 <span class="a"> ▀█████▀  ███   ███ █████████ █████████ ███   ███ ██████▀    </span><span class="b">███   ███ ███   ███  ▀█████▀  ███   ███    ███   </span>
 </pre></div>
-    <p class="tagline">A keyboard-first terminal calendar.</p>
+    <p class="tagline">A keyboard first calendar TUI.</p>
   </header>
 
   <div class="terminal">