chore: adds percent encoding link

web/docs/guides/database/managing-passwords.mdx

@@ -9,7 +9,7 @@ import TabItem from '@theme/TabItem';
 
 Your PostgreSQL database is the core of your Supabase project, so it's important that it has a strong, secure password at all times.
 
-If you use special symbols in your postgres password, you must remember to percent encode your password later if using the postgres connection string e.g. `postgresql://postgres:p%3Dword@db.cvwawazfelidkloqmbma.supabase.co:5432/postgres`
+If you use special symbols in your postgres password, you must remember to [percent-encode](https://en.wikipedia.org/wiki/Percent-encoding) your password later if using the postgres connection string e.g. `postgresql://postgres:p%3Dword@db.cvwawazfelidkloqmbma.supabase.co:5432/postgres`
 
 
 ### Changing your project password