fix: fix doc url for pinry doc

README.md

@@ -8,7 +8,7 @@ The open-source core of Pinry, a tiling image board system for people
 who want to save, tag, and share images, videos and webpages in an easy
 to skim through format.
 
-For more information ( screenshots and document ) visit [https://pinry.github.io/pinry/](https://getpinry.com).
+For more information ( screenshots and document ) visit [https://pinry.github.io/pinry/](https://pinry.github.io/pinry/).
 
 
 ## Features