docs: modify sentences slightly in Entity

user_guide_src/source/models/entities.rst

@@ -309,7 +309,7 @@ like ``type[param1, param2]``.
 
 .. literalinclude:: entities/021.php
 
-.. note:: If the casting type is marked as nullable ``?bool`` and the passed value is not null, then the parameter with
+.. note:: If the casting type is marked as nullable like ``?bool`` and the passed value is not null, then the parameter with
     the value ``nullable`` will be passed to the casting type handler.
     If casting type has predefined parameters, then ``nullable`` will be added to the end of the list.
 

user_guide_src/source/models/entities/018.php

@@ -6,7 +6,7 @@
 
 class MyEntity extends Entity
 {
-    // Specifying the type for the field
+    // Specify the type for the field
     protected $casts = [
         'key' => 'base64',
     ];

user_guide_src/source/models/entities/020.php

@@ -6,7 +6,7 @@
 
 class MyEntity extends Entity
 {
-    // Defining a type with parameters
+    // Define a type with parameters
     protected $casts = [
         'some_attribute' => 'class[App\SomeClass, param2, param3]',
     ];