docs: Fixed insert incorrect example in single table inheritance docs

docs/content/1.guide/2.model/7.single-table-inheritance.md

@@ -52,9 +52,7 @@ For typescript look at this [discussion](https://github.com/CodeDredd/pinia-orm/
 Once you defined a sub-class, you can `insert` / `create` / `update` / `get` / `delete` entities using the Model static methods. For instance, to create or insert data:
 
 ```js
-useRepo(Adult).insert({ 
-  data: { id: 1, name: 'John Doe', job: 'Software Engineer' }
-})
+useRepo(Adult).insert({id: 1, name: 'John Doe', job: 'Software Engineer' })
 ```
 
 And to fetch data: 
@@ -132,12 +130,11 @@ Now, you can create mixed types of records at once.
 
 ```js
 // Creating mixed data.
-useRepo(Person).insert({ 
-  data: [
+useRepo(Person).insert([
     { type:'PERSON', id: 1, name: 'John Doe' },
     { type:'ADULT', id: 2, name: 'Jane Doe', job: 'Software Engineer' }
   ]
-})
+)
 
 const people = useRepo(Person).all()
 
@@ -193,12 +190,11 @@ class Adult extends Person {
 And now you may use a custom `type` field when inserting data.
 
 ```js
-useRepo(Person).insert({ 
-  data: [
+useRepo(Person).insert([
     { person_type: 'PERSON', id: 1, name: 'John Doe' },
     { person_type: 'ADULT', id: 2, name: 'Jane Doe', job: 'Software Engineer' }
   ]
-})
+)
 
 const people = useRepo(Person).all()
 
@@ -253,12 +249,10 @@ Then you can fetch the key with its results.
 
 ```js
 // Creating mixed data
-useRepo(Person).insert({ 
-  data: [
+useRepo(Person).insert([
     { type:'PERSON', id: 1, name: 'John Doe' },
     { type:'ADULT', id: 2, name: 'Jane Doe', job: 'Software Engineer' }
-  ]
-})
+  ])
 
 const people = useRepo(Person).all()
 
@@ -321,21 +315,15 @@ class Address extends Model {
 And let's see what would happen in this case.
 
 ```js
-useRepo(Address).insert({
-  data: [
+useRepo(Address).insert([
     { id: 1, city: 'TOKYO' },
     { id: 2, city: 'PARIS' },
     { id: 3, city: 'BERLIN' }
-  ]
-})
+  ])
 
-useRepo(Person).insert({
-  data: { id: 1, home_address_id: 1, name: 'John Doe' }
-})
+useRepo(Person).insert({ id: 1, home_address_id: 1, name: 'John Doe' })
 
-useRepo(Adult).insert({
-  data: { id: 2, home_address_id: 2, work_address_id: 3, name: 'Jane Doe', job: 'Software Engineer' }
-})
+useRepo(Adult).insert({ id: 2, home_address_id: 2, work_address_id: 3, name: 'Jane Doe', job: 'Software Engineer' })
 
 const people = useRepo(Person).query().with(['home_address', 'work_address']).get()