DOC: make user/explain/index cards

Author: jklymak

galleries/users_explain/index.rst

@@ -3,21 +3,87 @@
 
 .. redirect-from:: /users/explain
 
-
-
 Using Matplotlib
 ----------------
 
-.. toctree::
-    :maxdepth: 2
-
-    quick_start
-    figure/index
-    axes/index
-    artists/index
-    customizing
-    axis/index
-    colors/index
-    text/index
-    animations/index
-    toolkits/index
+.. grid:: 1 1 2 2
+
+    .. grid-item-card::
+        :padding: 2
+
+        .. toctree::
+            :maxdepth: 2
+
+            quick_start
+
+    .. grid-item-card::
+        :padding: 2
+
+        .. toctree::
+            :maxdepth: 2
+
+            figure/index
+
+    .. grid-item-card::
+        :padding: 2
+
+        .. toctree::
+            :maxdepth: 2
+
+            axes/index
+
+    .. grid-item-card::
+        :padding: 2
+
+        .. toctree::
+            :maxdepth: 2
+
+            artists/index
+
+    .. grid-item-card::
+        :padding: 2
+
+        .. toctree::
+            :maxdepth: 2
+
+            customizing
+
+    .. grid-item-card::
+        :padding: 2
+
+        .. toctree::
+            :maxdepth: 2
+
+            axis/index
+
+    .. grid-item-card::
+        :padding: 2
+
+        .. toctree::
+            :maxdepth: 2
+
+            colors/index
+
+    .. grid-item-card::
+        :padding: 2
+
+        .. toctree::
+            :maxdepth: 2
+
+            text/index
+
+    .. grid-item-card::
+        :padding: 2
+
+        .. toctree::
+            :maxdepth: 2
+
+            animations/index
+
+    .. grid-item-card::
+        :padding: 2
+
+        .. toctree::
+            :maxdepth: 2
+
+            toolkits/index