Updated lerna reference link (#156)

- The previous link was outdated and didn't work

Author: mbalc

README.md

@@ -8,7 +8,7 @@
 
 ## Develop
 
-This is a mono repository, managed with [lerna](https://lernajs.io/).
+This is a mono repository, managed with [lerna](https://lerna.js.org).
 
 1. `git clone` this repo & `cd` into it as usual
 2. `yarn setup` is mapped to `lerna bootstrap`
@@ -40,4 +40,4 @@ To add a new package to the repo:
 
 # Copyright & License 
 
-Copyright (c) 2013-2023 Ghost Foundation - Released under the [MIT license](LICENSE).
+Copyright (c) 2013-2023 Ghost Foundation - Released under the [MIT license](LICENSE).