docs($ios8): make iOS8 alert a warning

[skip ci]
#1284

docs/index.jmd

@@ -7,8 +7,7 @@
 """iOS8 contains some serious bugs that prevent uploading in some cases.  Workarounds are included
 in Fine Uploader in an attempt to work around these issues.  Unfortunately, there are no known
 workarounds for iOS8 Safari and uploading in that browser is not possible at this time
-Please see [the blog post on this topic for more details](http://blog.fineuploader.com/2014/09/10/ios8-presents-serious-issues-that-prevent-file-uploading/)."""
-)}}
+Please see [the blog post on this topic for more details](http://blog.fineuploader.com/2014/09/10/ios8-presents-serious-issues-that-prevent-file-uploading/).""", "warning", "") }}
 
 {{ alert(
 """Version 5.0 brings some breaking changes.  See the [upgrading to 5.x page](upgrading-to-5.html)