Add more configurations for reverse proxies

People have choices. We should offer people the ability to take a look at the different options, instead of just pointing them to the Nginx setup from Misskey.

content/en/docs/install/fresh.md

@@ -331,7 +331,7 @@ http:
 ### Caddy
 > Heads up - Sharkey doesn't officially support Caddy, but you can still find community support for it within the discord.
 
-In your Caddyfile, inset the following instructions. Note that ``<>`` denotes a required option, and ``[]`` is optional to have in your config.
+In your Caddyfile, insert the following instructions. Note that ``<>`` denotes a required option, and ``[]`` is optional to have in your config.
 
 ```Caddyfile
 <myshark.ey>