add required for solid-form

source/import_documentation/Components/Solid-Form.rst

@@ -80,6 +80,11 @@ Attributes
    Add this attribute when the form does not include
    all the fields of the resource to update.
 
+``required-[field]``
+~~~~~~~~~~~~~~~~~~~~
+   Add this attribute to make the ``[field]`` required by adding the ``required`` attribute to the input.
+
+
 ``min-[field]``
 ~~~~~~~~~~~
    Add this attribute for the field ``[field]`` to define its minimum value.