Admin toolbar and config sync

web/modules/contrib/admin_toolbar/README.txt

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+---SUMMARY---
+
+Admin Toolbar intends to improve the default Drupal Toolbar to transformit into
+a drop-down menu, providing a fast and full access to all administration links.
+
+For a full description visit project page:
+https://www.drupal.org/project/admin_toolbar
+
+Bug reports, feature suggestions and latest developments:
+http://drupal.org/project/issues/admin_toolbar
+
+
+---REQUIREMENTS---
+
+
+*None. (Other than a clean Drupal 8 installation)
+
+
+---INSTALLATION---
+
+
+Install as usual.
+
+Place the entirety of this directory in the /modules folder of your Drupal
+installation. Navigate to Administer > Extend. Check the 'Enabled' box next
+to the 'Admin toolbar' and/or 'Admin toolbar Extra Tools' and then click
+the 'Save Configuration' button at the bottom.
+
+For help regarding installation, visit:
+https://www.drupal.org/documentation/install/modules-themes/modules-8
+
+
+---CONTACT---
+
+
+Current Maintainers:
+*Wilfrid Roze (eme) - https://www.drupal.org/u/eme
+*Mohamed Anis Taktak (matio89) - https://www.drupal.org/u/matio89
+
+
+This project has been sponsored by:
+*emerya
+Founded in 2009, emerya is a human-sized company, dedicated to the design
+and implementation of web interfaces.
+Visit: http://http://emerya.fr/ for more information.