[Config] Update theme

Author: federeghe

_config.yml

@@ -1,4 +1,9 @@
-theme: jekyll-theme-slate
-show_downloads: false
+title: ASPIS
+description: LLVM-based Software-Implemented Hardware Fault Tolernace 
 
-description: ASPIS - LLVM-based Software-Implemented Hardware Fault Tolernace 
+show_downloads: true
+
+remote_theme: pages-themes/cayman@v0.2.0
+
+plugins:
+- jekyll-remote-theme # add this line to the plugins list if you already have one