fix(docs): address CTO review feedback on marketing site

- Convert mobile-groomers.html from Markdown to proper HTML
- Fix "Client/p pet profiles" typo → "Client/pet profiles"
- Add missing trailing newlines to all files
- Remove duplicate "Back to Home" link in getting-started/index.html
- Fix link paths: use relative URLs instead of /groombook/docs/ absolute paths
- Remove placeholder testimonials with fake names

Co-Authored-By: Paperclip <noreply@paperclip.ing>

docs/blog/launch.html

@@ -32,7 +32,7 @@
     <p class="date">March 2026</p>
   </header>
 
-  <a href="/" class="back-link">← Back to Home</a>
+  <a href="../" class="back-link">← Back to Home</a>
 
   <p class="highlight"><strong>We built the CRM you've been waiting for if you're tired of paper files, spreadsheets, and overpriced salon software that spies on you.</strong></p>
 
@@ -127,4 +127,4 @@
     <p style="margin-top: 20px; font-size: 0.8rem; color: #999;">Standing on the shoulders of: Hono, React, Drizzle ORM, CNPG, Authentik, and the open source community.</p>
   </footer>
 </body>
-</html>
+</html>

docs/blog/why-we-built.html

@@ -41,7 +41,7 @@
     <p class="date">March 2026</p>
   </header>
 
-  <a href="/" class="back-link">← Back to Home</a>
+  <a href="../" class="back-link">← Back to Home</a>
 
   <div class="story">
     <p>My groomer's name is Maria. She's been grooming for 22 years. She has a small salon with two chairs, a bathtub for the big dogs, and a wall of laminated breed standard cards that her mentor gave her in 2002.</p>
@@ -151,4 +151,4 @@
     <p style="margin-top: 10px;">Groom Book — Open Source Pet Grooming Software</p>
   </footer>
 </body>
-</html>
+</html>