Use "properties" instead of "attributes" to potentially avoid confusion

Author: jarvelov

docs/api/ui-schema/field/field-options.md

@@ -1,12 +1,12 @@
 # Field options
 
-## Available attributes
+## Available properties
 
 > See Vue's guide on render function's [Data Object In-Depth]( https://vuejs.org/v2/guide/render-function.html#The-Data-Object-In-Depth) for more details on all available properties
 
 Since we're using Vue's [render functions](https://vuejs.org/v2/guide/render-function.html) to create the form elements basically any property that is supported in a render function can be used in the `fieldOptions` object.
 
-The following attributes are tested and supported with `vue-form-json-schema`
+The following properties are tested and supported with `vue-form-json-schema`
 
 * [attrs](field-options/attrs.md)
 * [class](field-options/class.md)