Fixed improperly named property name, fixed documentation conflicts

README.md

@@ -279,14 +279,12 @@ $person->withModId()->save();
 
 The modId is automatically set on the model object when you retrieve a record from FileMaker, so you don't need to set it manually.
 
-
 If you always want the ModId to be included when saving a record, you can set the `$withModId` property to true on your model class.
 
 ```php
-protected $useModId = true;
+protected $withModId = true;
 ```
 
-If you wish to always include a ModId on a model, you can set `protected $withModId = true;` on your model class.
 
 ## Example FMModel Class
 ```php

src/Database/Eloquent/FMModel.php

@@ -65,7 +65,11 @@ abstract class FMModel extends Model
      */
     protected $modId;
 
-    protected $useModId = false;
+    /**
+     * A flag to determine if the last retrieved ModId for the record should be sent when editing a record. The Data
+     * API will return an error if the record has been modified and current ModId does not match the one being sent.
+     */
+    protected $withModId = false;
 
     /**
      * The "type" of the primary key ID. FileMaker uses UUID strings by default.
@@ -227,14 +231,14 @@ public function setModId($modId): void
     public function withModId($include = true): static
     {
         // remove any set ModId if the user wishes to remove it
-        $this->useModId = $include;
+        $this->withModId = $include;
 
         return $this;
     }
 
     public function usingModId(): bool
     {
-        return $this->useModId;
+        return $this->withModId;
     }
 
     public function getReadOnlyFields()