doc: add minimal usage to README

README.md

@@ -11,6 +11,32 @@ _An improved Suggestion-Handler for Solr_
 
 This is an update of the [Vind Suggestion Handler](https://github.com/RBMHTechnology/vind) compatible with Solr 9+.
 
+## Usage
+
+1. Add the following library to your Solr's lib-directory:
+    ```xml
+    <dependency>
+        <groupId>io.redlink.solr</groupId>
+        <artifactId>solr-advanced-suggester</artifactId>
+        <version>${suggester.version}</version>
+    </dependency>
+    ```
+2. Within `solrconfig.xml` configure a dedicated suggestion-handler:
+    ```xml
+    <requestHandler name="/suggester"
+                    class="io.redlink.solr.suggestion.SuggestionRequestHandler">
+        <lst name="defaults">
+            <!-- enable suggestions -->
+            <str name="suggestion">true</str>
+            <!-- create suggestions based on the following field -->
+            <str name="suggestion.df">suggestions</str>
+            <!-- limit the suggestions to 10 terms -->
+            <str name="suggestion.term.limit">10</str>
+        </lst>
+    </requestHandler>
+    ```
+    For further details have a look at the solr-configuration used in the test.
+
 ## License
 Free use of this software is granted under the terms of the Apache License Version 2.0.
 See the [License](LICENSE.txt) for more details.