Fix modal documentation (#22252)

The example code has the class `"modal fade"`, but the visible example has the class `"modal"`. `"fade"` appears to not work for modals that you do not intend to animate onto the page

diff --git a/docs/components/modal.md b/docs/components/modal.md
index 96a11e1a2d9957443a311d23413ebb63e8660a4a..a4e28bcec5de0b796db55ff3bbdc844a51bac9f5 100644 (file)
--- a/docs/components/modal.md
+++ b/docs/components/modal.md
@@ -63,7 +63,7 @@ Below is a _static_ modal example (meaning its `position` and `display` have bee
 </div>
 
 {% highlight html %}
-<div class="modal fade">
+<div class="modal">
   <div class="modal-dialog" role="document">
     <div class="modal-content">
       <div class="modal-header">