GEODE-8796: doc max-threads incompatible with TLS (#5860)

diff --git a/geode-docs/tools_modules/gfsh/command-pages/start.html.md.erb b/geode-docs/tools_modules/gfsh/command-pages/start.html.md.erb
index c60566b..83db07c 100644
--- a/geode-docs/tools_modules/gfsh/command-pages/start.html.md.erb
+++ b/geode-docs/tools_modules/gfsh/command-pages/start.html.md.erb
@@ -724,7 +724,7 @@
 </tr>
 <tr>
 <td><span class="keyword parmname">\-\-max-threads</span></td>
-<td>Sets the maximum number of threads allowed in this cache server to service client requests. The default of 0 causes the cache server to dedicate a thread for every client connection.</td>
+<td>Sets the maximum number of threads allowed in this cache server to service client requests. The default of 0 causes the cache server to dedicate a thread for every client connection. When client-server TLS/SSL is configured, values other than the default are not supported.</td>
 <td> </td>
 </tr>
 <tr>