Add cross-reference to .NET Libraries documentation in OTA page

Author: nickprotop

cloud/src/www/docs/ota.html

@@ -732,6 +732,11 @@ <h2 id="dotnet">.NET SDK <span class="sdk-badge">Available</span></h2>
 
                 <p>The .NET SDK provides full OTA support through the <code>LocalizationManager.JsonLocalization</code> NuGet package.</p>
 
+                <div class="info-box">
+                    <div class="info-box-title">Full Library Documentation</div>
+                    <p>For complete documentation on the JsonLocalization library including standalone usage, ASP.NET Core integration, pluralization, and source generators, see the <a href="dotnet.html">.NET Libraries</a> page.</p>
+                </div>
+
                 <h3>Installation</h3>
                 <pre><code>dotnet add package LocalizationManager.JsonLocalization</code></pre>