docs/4.1/components/forms.md: fix useiconic link.

diff --git a/site/docs/4.1/components/forms.md b/site/docs/4.1/components/forms.md
index f0db3f7195b4585efbaecf50f6222fbeb27de9cc..9d095cae40219cdf0e5849922391d3d32c5704a5 100644 (file)
--- a/site/docs/4.1/components/forms.md
+++ b/site/docs/4.1/components/forms.md
@@ -1111,7 +1111,7 @@ We use the sibling selector (`~`) for all our `<input>` states—like `:checked`
 
 We hide the default `<input>` with `opacity` and use the `.custom-control-label` to build a new custom form indicator in its place with `::before` and `::after`. Unfortunately we can't build a custom one from just the `<input>` because CSS's `content` doesn't work on that element.
 
-In the checked states, we use **base64 embedded SVG icons** from [Open Iconic](https://useiconic.com/open). This provides us the best control for styling and positioning across browsers and devices.
+In the checked states, we use **base64 embedded SVG icons** from [Open Iconic](https://github.com/iconic/open-iconic). This provides us the best control for styling and positioning across browsers and devices.
 
 #### Checkboxes