Update database.md

one minor edit

Author: kirkwalk

docs/database.md

@@ -6,7 +6,7 @@ The database is located at `${dataDir}/db.sqlite`.
 
 ### Tables
 
-There is a single built-in table called `users`. There's also a method [`db.saveUser`](core-reference.md/#saveuseruserobject---promise) that connectors modules should use to save users to the database.
+There is a single built-in table called `users`. There's also a method [`db.saveUser`](core-reference.md/#saveuseruserobject---promise) that connectors' modules should use to save users to the database.
 
 The convention is to prepend the name of your module to your tables, for example `analytics-interactions`, `messenger-config`.
 
@@ -18,4 +18,4 @@ bp.db.get()
     knex('users').where({ first_name: 'Sylvain' })
     .then(users => /* ... */)
 })
-```
+```