update to caddy v2

* release cert issue

readme.md

@@ -54,13 +54,13 @@ install gitea configuration
 for x86
 
 ```
-$ wget https://github.com/caddyserver/caddy/releases/download/v1.0.4/caddy_v1.0.4_linux_amd64.tar.gz -O caddy.tar.gz
+$ wget https://github.com/caddyserver/caddy/releases/download/v2.4.6/caddy_2.4.6_linux_amd64.tar.gz -O caddy.tar.gz
 ```
 
 for arm cpu
 
 ```
-& wget https://github.com/caddyserver/caddy/releases/download/v1.0.4/caddy_v1.0.4_linux_arm7.tar.gz -O caddy.tar.gz
+& wget https://github.com/caddyserver/caddy/releases/download/v2.4.6/caddy_2.4.6_linux_armv7.tar.gz -O caddy.tar.gz
 ```
 
 ```
@@ -78,7 +78,7 @@ $ sudo nano Caddyfile
 
 ```text
 homenetyth.ddnsking.com {
-  proxy / 127.0.0.1:3000
+  reverse_proxy 127.0.0.1:3000
 }
 ```
 
@@ -109,7 +109,7 @@ $ acme.sh -v
 !!!! run service
 
 ```
-$ sudo ./caddy -conf Caddyfile
+$ sudo ./caddy run --config Caddyfile
 ```
 
 ```text