Add README

... to provide new users with general information about the module, how
to install it, and its basic usage.

Author: paultcochrane

Diff for: README.md

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+# HTML::FormFu::Model::LDAP - Integrate FormFu and LDAP
+
+`HTML::FormFu::Model::LDAP` is a module to integrate
+[HTML::FormFu](https://metacpan.org/pod/HTML::FormFu) (a form creation and
+validation framework) with the
+[LDAP](https://en.wikipedia.org/wiki/Lightweight_Directory_Access_Protocol)
+directory information services system.  By integrating these systems, it is
+possible to set a form's default values from information gleaned from a
+given LDAP system as well as to update values in LDAP from a submitted form.
+
+## Installation
+
+Currently, the best way to install this module is directly from its [GitHub
+repository](https://github.com/FormFu/HTML-FormFu-Model-LDAP).
+
+First, clone the repository:
+
+```
+$ git clone https://github.com/FormFu/HTML-FormFu-Model-LDAP.git
+```
+
+then change into the `HTML-FormFu-Model-LDAP/` directory, install the
+dependencies and build the `Makefile`:
+
+```
+$ cd HTML-FormFu-Model-LDAP/
+$ cpanm --installdeps .
+$ perl Makefile.PL
+```
+
+If you wish, you can run the test suite like so:
+
+```
+$ make test
+```
+
+To install the distribution, simply run
+
+```
+$ make install
+```
+
+## Basic usage
+
+Make sure you set the form's default model for `HTML::FormFu` to `LDAP`:
+
+```
+---
+default_model: LDAP
+```
+
+To set a form's default values from LDAP, use the `default_values()` method:
+
+```perl
+$form->model->default_values($ldap_entry);
+```
+
+To update LDAP with values from a submitted form, simply call the `update()`
+method:
+
+```perl
+if ($form->submitted_and_valid) {
+    $form->model->update($ldap_entry);
+}
+```
+
+See the
+[HTML::FormFu::Model::DBIC documentation](https://metacpan.org/pod/HTML::FormFu::Model::DBIC)
+for more usage information.