Added Dedibox GPU and Titanium Elastic Metal SLAs (scaleway#4405)

Author: bene2k1

pages/elastic-metal/reference-content/shared-responsibility-model.mdx

@@ -27,10 +27,12 @@ Bare Metal Products target the following power supplies and connectivity SLOs:
     * Start: 99.9% availability
     * Pro and Store: 99.95% availability
     * Core: 99.99% availability
+    * GPU: 99.99% availability
 * For Elastic Metal servers:
     * Aluminium: 99.9% availability
     * Beryllium and Lithium: 99.95% availability
     * Iridium: 99.99% availability
+    * Titanium: 99.99% availability
 * For Apple silicon servers:
     * Mac mini: 99.95% availability
 
@@ -115,4 +117,4 @@ For optimal security, we recommend that you:
 * use an SSH key to access your machine, rather than using username and password authentication,
 * check and update the firewall and filtering rules if necessary,
 * regularly update the operating system to take advantage of configuration updates and security patches,
-* limit access to the preconfigured VNC server and access it through tunneled SSH connections (for Apple silicon servers).
+* limit access to the preconfigured VNC server and access it through tunneled SSH connections (for Apple silicon servers).