Fix misspell

diff --git a/docs/4.0/components/collapse.md b/docs/4.0/components/collapse.md
index c77d436fb07c1760a6434849440dc53d62300a93..9e889efb27df452edc3a23b6a415b5d6b04187d2 100644 (file)
--- a/docs/4.0/components/collapse.md
+++ b/docs/4.0/components/collapse.md
@@ -216,7 +216,7 @@ $('#myCollapsible').collapse({
 
 #### `.collapse('toggle')`
 
-Toggles a collapsible element to shown or hidden. **Returns to the caller before the collapsible element has actually been shown or hidden (i.e. before the `shown.bs.collapse` or `hidden.bs.collapse` event occurs).
+Toggles a collapsible element to shown or hidden. **Returns to the caller before the collapsible element has actually been shown or hidden** (i.e. before the `shown.bs.collapse` or `hidden.bs.collapse` event occurs).
 
 #### `.collapse('show')`