More WebSub doc (#5862)

* More WebSub doc

* UI for WebSub + more documentation
And spellcheck Frech

* Links to WebSub doc from readme

* Add link to WebSub doc in admin interface

* Fix checkbox

* Plural

1 files changed, 2 insertions, 2 deletions

diff --git a/README.md b/README.md
index 02fc0ac01..b1fb83446 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ It is lightweight, easy to work with, powerful, and customizable.
 It is a multi-user application with an anonymous reading mode. It supports custom tags.
 There is an API for (mobile) clients, and a [Command-Line Interface](cli/README.md).
 
-Thanks to the [WebSub](https://www.w3.org/TR/websub/) standard (formerly [PubSubHubbub](https://github.com/pubsubhubbub/PubSubHubbub)),
+Thanks to the [WebSub](https://freshrss.github.io/FreshRSS/en/users/WebSub.html) standard,
 FreshRSS is able to receive instant push notifications from compatible sources, such as [Friendica](https://friendi.ca), [WordPress](https://wordpress.org/plugins/pubsubhubbub/), Blogger, Medium, etc.
 
 FreshRSS natively supports basic Web scraping, based on [XPath](https://www.w3.org/TR/xpath-10/), for Web sites not providing any RSS / Atom feed.
@@ -22,7 +22,7 @@ Different [login methods](https://freshrss.github.io/FreshRSS/en/admins/09_Acces
 Finally, FreshRSS supports [extensions](#extensions) for further tuning.
 
 * Official website: <https://freshrss.org>
-* Demo: <https://demo.freshrss.org/>
+* Demo: <https://demo.freshrss.org>
 * License: [GNU AGPL 3](https://www.gnu.org/licenses/agpl-3.0.html)
 
 ![FreshRSS logo](docs/img/FreshRSS-logo.png)