Add message brokers category

Author: Kleidukos

content/ecosystem/_index.md

@@ -31,4 +31,9 @@ url = "/ecosystem/web-development"
 title = "System Programming"
 content = "Time, Processes, Network"
 url = "/ecosystem/system"
+
+[[extra.list]]
+title = "Message Brokers"
+content = "Stream processing, messaging systems, message queues"
+url = "/ecosystem/messaging"
 +++

content/ecosystem/messaging.md

@@ -0,0 +1,13 @@
++++
+title = "Message Brokers"
++++
+
+<dl>
+    <dt>
+        <a href="https://github.com/shinzui/kafka-effectful"><code>shinzui/kafka-effectful</code></a>
+        <a href="https://hackage.haskell.org/package/kafka-effectful">
+            <img src="https://img.shields.io/hackage/v/kafka-effectful.svg" alt="Hackage" data-canonical-src="https://img.shields.io/hackage/v/kafka-effectful.svg" style="max-width: 100%;">
+        </a>
+    </dt>
+    <dd>Effectful effects for hw-kafka-client.</dd>
+</dl>