Add docs for transactions in hooks and delete method (#407)

08-Lucid-ORM/01-Getting-Started.adoc

@@ -787,7 +787,7 @@ const user = await User.find(1, trx)
 
 [source, js]
 ----
-const user = await User.query(trx).where('username','virk).first()
+const user = await User.query(trx).where('username','virk').first()
 ----
 
 [source, js]
@@ -797,6 +797,15 @@ await User.createMany([
 ], trx)
 ----
 
+Also you can pass the `trx` object to the `delete` method:
+
+[source, js]
+----
+const user = await User.find(1, trx)
+
+await user.delete(trx)
+----
+
 === Transactions in Relationships
 When using transactions, you'll need to pass a `trx` object as the third parameter of the relationship `attach` and `detach` methods:
 

08-Lucid-ORM/02-Hooks.adoc

@@ -36,6 +36,27 @@ class User extends Model {
 module.exports = User
 ----
 
+=== Hook Within Transactions
+To use hooks within link:lucid#_transactions[transactions] just add second param `trx` into hook closure
+
+[source, js]
+----
+const Model = use('Model')
+const Hash = use('Hash')
+
+class User extends Model {
+  static boot () {
+    super.boot()
+
+    this.addHook('beforeCreate', async (userInstance, trx) => {
+      // here you can use transaction object `trx`
+    })
+  }
+}
+
+module.exports = User
+----
+
 In the example above, the `beforeCreate` closure is executed when creating a `User` model to ensure the user's password is hashed before it's saved.
 
 === Hook File