Update docs/tech_docs/OpenWrt.md

docs/tech_docs/OpenWrt.md

@@ -135,4 +135,28 @@ passwd
 pct console 300
 ```
 
+```bash
+apk update
+```
+
+```bash
+apk upgrade
+```
+
+```bash
+sed -i '/^#.*community/s/^#//' /etc/apk/repositories
+```
+
+```bash
+setup-interfaces
+```
+Choose the appropriate network interface and configure it with DHCP or a static IP as required. Then:
+
+```bash
+service networking restart
+```
+
+```bash
+apk add bash curl wget nano vim
+```
 ## Notes