[hotfix] Update installer README links

README.md

@@ -86,11 +86,11 @@ The extensible toolbox of data processors and sinks supports use cases such as
 
 ## Installation
 
-The quickest way to run StreamPipes including the latest extensions (adapters, pipeline elements) is by using our Docker-based [installation & operation options](https://www.github.com/apache/incubator-streampipes-installer), namely: 
+The quickest way to run StreamPipes including the latest extensions (adapters, pipeline elements) is by using our Docker-based [installation & operation options](installer), namely: 
 
-* **[StreamPipes Compose](https://github.com/apache/incubator-streampipes-installer/tree/master/compose)** - The User's Choice
-* **[StreamPipes CLI](https://github.com/apache/incubator-streampipes-installer/tree/master/cli)** - The Developer's Favorite
-* **[StreamPipes k8s](https://github.com/apache/incubator-streampipes-installer/tree/master/k8s)** - The Operator's Dream
+* **[StreamPipes Compose](installer/compose)** - The User's Choice
+* **[StreamPipes CLI](installer/cli)** - The Developer's Favorite
+* **[StreamPipes k8s](installer/k8s)** - The Operator's Dream
 
 > **NOTE**: StreamPipes CLI & k8s are highly recommended for developers or operators. Standard users should stick to StreamPipes Compose.