Update gallery.yml (#1089)

Co-authored-by: Brigitta Sipőcz <bsipocz@gmail.com>

Author: huyuhuster

docs/gallery.yml

@@ -526,6 +526,10 @@
   repository: https://github.com/NeuroML/Documentation/
   website: https://docs.neuroml.org
   image: https://docs.neuroml.org/_static/logo.png
+- name: "Daisy"
+  repository: https://github.com/huyuhuster/daisydoc
+  website: https://daisydoc.readthedocs.io/
+  image: https://daisydoc.readthedocs.io/en/latest/_static/logo-wide.png
 - name: "OpenScope Databook"
   repository: https://github.com/AllenInstitute/openscope_databook
   website: https://alleninstitute.github.io/openscope_databook/intro.html