diff --git a/README.md b/README.md
index 457b032..d08ae7f 100644
--- a/README.md
+++ b/README.md
@@ -2263,7 +2263,7 @@ Coroutines
 * **Coroutine definition starts with `'async'` and its call with `'await'`.**
 * **`'asyncio.run(<coroutine>)'` is the main entry point for asynchronous programs.**
 * **Functions wait(), gather() and as_completed() can be used when multiple coroutines need to be started at the same time.**
-* **Asyncio module also provides it's own Queue, Event, Lock and Semaphore classes.**
+* **Asyncio module also provides it's own [Queue](#queue), [Event](#semaphoreeventbarrier), [Lock](#lock) and [Semaphore](#semaphoreeventbarrier) classes.**
 
 #### Runs a terminal game where you control an asterisk that must avoid numbers:
 
diff --git a/index.html b/index.html
index b41eaf4..fa7ad5f 100644
--- a/index.html
+++ b/index.html
@@ -1963,7 +1963,7 @@ ValueError: malformed node or string
 <li><strong>Coroutine definition starts with <code class="python hljs"><span class="hljs-string">'async'</span></code> and its call with <code class="python hljs"><span class="hljs-string">'await'</span></code>.</strong></li>
 <li><strong><code class="python hljs"><span class="hljs-string">'asyncio.run(&lt;coroutine&gt;)'</span></code> is the main entry point for asynchronous programs.</strong></li>
 <li><strong>Functions wait(), gather() and as_completed() can be used when multiple coroutines need to be started at the same time.</strong></li>
-<li><strong>Asyncio module also provides it's own Queue, Event, Lock and Semaphore classes.</strong></li>
+<li><strong>Asyncio module also provides it's own <a href="#queue">Queue</a>, <a href="#semaphoreeventbarrier">Event</a>, <a href="#lock">Lock</a> and <a href="#semaphoreeventbarrier">Semaphore</a> classes.</strong></li>
 </ul><div><h4 id="runsaterminalgamewhereyoucontrolanasteriskthatmustavoidnumbers">Runs a terminal game where you control an asterisk that must avoid numbers:</h4><pre><code class="python language-python hljs"><span class="hljs-keyword">import</span> asyncio, collections, curses, enum, random
 
 P = collections.namedtuple(<span class="hljs-string">'P'</span>, <span class="hljs-string">'x y'</span>)         <span class="hljs-comment"># Position</span>