Fix Broken Link in README.md (#65)

Author: ilharp

README.md

@@ -10,7 +10,7 @@
 
 [📖 **Release Notes**](./CHANGELOG.md)
 
-:warning: With Nuxt v2.13 you might want to migrate from @nuxtjs/dotenv module to use the [new runtime config](https://nuxtjs.org/blog/moving-from-nuxtjs-dotenv-to-runtime-config.)
+:warning: With Nuxt v2.13 you might want to migrate from @nuxtjs/dotenv module to use the [new runtime config](https://nuxtjs.org/blog/moving-from-nuxtjs-dotenv-to-runtime-config).
 
 ## Features