Readded the link

Author: javiereguiluz

weblink.rst

@@ -5,10 +5,10 @@ Symfony provides native support (via the :doc:`WebLink component </components/we
 for managing ``Link`` HTTP headers, which are the key to improve the application
 performance when using HTTP/2 and preloading capabilities of modern web browsers.
 
-``Link`` headers are used in `HTTP/2 Server Push`_ and W3C's `Resource Hints
-<https://www.w3.org/TR/resource-hints/>`_ to push resources (e.g. CSS and
-JavaScript files) to clients before they even know that they need them.
-WebLink also enables other optimizations that work with HTTP 1.x:
+``Link`` headers are used in `HTTP/2 Server Push`_ and W3C's `Resource Hints`_
+to push resources (e.g. CSS and JavaScript files) to clients before they even
+know that they need them. WebLink also enables other optimizations that work
+with HTTP 1.x:
 
 * Asking the browser to fetch or to render another web page in the background;
 * Making early DNS lookups, TCP handshakes or TLS negotiations.
@@ -99,7 +99,7 @@ issuing an early separate HTTP request, use the ``nopush`` option:
 Resource Hints
 --------------
 
-Resource Hints are used by applications to help browsers when deciding which
+`Resource Hints`_ are used by applications to help browsers when deciding which
 resources should be downloaded, preprocessed or connected to first.
 
 The WebLink component provides the following Twig functions to send those hints:
@@ -160,6 +160,7 @@ You can also add links to the HTTP response directly from controllers and servic
     without requiring the entire Symfony framework.
 
 .. _`HTTP/2 Server Push`: https://tools.ietf.org/html/rfc7540#section-8.2
+.. _`Resource Hints`: https://www.w3.org/TR/resource-hints/
 .. _`Docker installer and runtime for Symfony`: https://github.com/dunglas/symfony-docker
 .. _`preload`: https://developer.mozilla.org/en-US/docs/Web/HTML/Preloading_content
 .. _`the Preload specification`: https://www.w3.org/TR/preload/#server-push-(http/2)