Replace multi-pipelines with workflows on docs frontpage (#2990)

Link does not work - workflows seems more appropriate

docs/src/components/HomepageFeatures.js

@@ -28,12 +28,12 @@ const FeatureList = [
     ),
   },
   {
-    title: 'Multi pipelines',
-    Svg: require('../../static/img/feat-multipipelines.svg').default,
+    title: 'Multi workflows',
+    Svg: require('../../static/img/workflows.svg').default,
     description: (
       <>
-        Woodpecker allows you to easily create multiple pipelines for your project. They can even depend on each other.
-        Check out the <a href="/docs/usage/multi-pipeline">docs</a>
+        Woodpecker allows you to easily create multiple workflows for your project. They can even depend on each other.
+        Check out the <a href="/docs/usage/workflows">docs</a>
       </>
     ),
   },