Add notes from summer IT school and home server setup

- Created a new note on home server setup detailing the transition from old PCs to a mini-PC server using Proxmox, including networking and remote access solutions.
- Added notes from the summer IT school covering various topics including IT infrastructure, automation, virtualization, and networking.
- Included detailed explanations of IT infrastructure layers, hardware components, automation tools, and virtualization technologies.
- Documented key concepts such as DevOps, SDN, NFV, and cloud models, along with practical scenarios and advantages of each technology.

_config.yml

@@ -56,11 +56,20 @@ navigation:
 # --- Поиск (встроенный lunr) ---
 search: true
 
-# --- Автор (для сайдбара/карточек) ---
 author:
   name: "ada"
   bio: "Ашалелый пропагандист линукса."
-  avatar: /assets/images/avatar.png  # положи файл, если нужен
+  avatar: /assets/images/avatar.png   # опционально
+  links:
+    - label: "GitHub"
+      icon: "fab fa-github"
+      url: "https://github.com/ada-dmitry"
+    - label: "Telegram"
+      icon: "fab fa-telegram"
+      url: "https://t.me/moonlosk"
+    - label: "RSS"
+      icon: "fas fa-rss"
+      url: "/feed.xml"
 
 # --- Соц.ссылки (иконки подтянутся автоматически) ---
 social: