Added readme.

README.md

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+# YP Install Profile
+
+This installation profile is used to create new Drupal sites in an easy and
+consistent way at Yellow Pencil. The profile contains standard modules along
+with config for those modules to get your site up and running as quickly as
+possible.
+
+### How to use
+
+This section will include the how to use instructions.
+
+### Included setup
+
+This section will include what's included in the profile install.
+
+- Home page content type
+- CKEditor; indent block, Linkit, anchor links, media library embeds and uploads
+- Four user types; Site Admin, Publisher, Editor, Writer
+- Permissions setup for user types
+- Media types; document, image, remote video and SVG
+- Reponsive image styles for image media type
+- Default workflow (Draft, Pubish, Archive)
+- Pathauto default URL pattern
+- Config ignore; Stage file proxy, webform, pathauto patterns
+- SMTP server setup to YP's server settings
+- Devel with config split already setup
+- Scheduled transitions
+- YP Alerts Module
+- YP Admin Guide Module
+
+#### Installed modules
+
+A full list of modules installed can be found in the
+`yp_install_profile.info.yml` file. However, some ones to note or that might not
+be modules you've seen before include:
+
+- automated_cron
+- better_exposed_filters
+- clientside_validation
+- clientside_validation_jquery
+- conditional_fields
+- file_delete
+- honeypot
+- linkit
+- media_bulk_upload
+- media_entity_file_replace
+- node_title_help_text
+- paragraphs_library
+- responsive_image
+- scheduled_transitions
+- simple_sitemap
+- svg_image
+- svg_image_responsive
+- twig_field_value
+- twig_tweak
+- ultimate_cron
+- username_enumeration_prevention
+- views_infinite_scroll