Add show cases

website/docs/index.md

@@ -31,3 +31,55 @@ foo(
 ```
 
 Prettier Java enforces a consistent code **style** (i.e. code formatting that won't affect the AST) across your entire codebase because it disregards the original styling by parsing it away and re-printing the parsed AST with its own rules that take the maximum line length into account, wrapping code when necessary.
+
+## Lambdas are supported well
+
+Prettier Java is handling lambdas properly.
+When formatting the example by [palantir-java-format](https://github.com/palantir/palantir-java-format#motivation--examples), one get this result:
+
+```java
+private static void configureResolvedVersionsWithVersionMapping(
+  Project project
+) {
+  project
+    .getPluginManager()
+    .withPlugin("maven-publish", (plugin) -> {
+      project
+        .getExtensions()
+        .getByType(PublishingExtension.class)
+        .getPublications()
+        .withType(MavenPublication.class)
+        .configureEach((publication) ->
+          publication.versionMapping((mapping) -> {
+            mapping.allVariants(
+              VariantVersionMappingStrategy::fromResolutionResult
+            );
+          })
+        );
+    });
+}
+```
+
+## Optmized for reading
+
+The aim is to keep the code within 80 characters.
+There might be "mart" exeptions, but as [Prettier states](https://prettier.io/docs/options#print-width), 80 characters are recommended for readability.
+
+The [chained example by Palantir](https://github.com/palantir/palantir-java-format#optimised-for-code-review) is reformatted as follows:
+
+```java
+var foo = SomeType.builder()
+  .thing1(thing1)
+  .thing2(thing2)
+  .thing3(thing3)
+  .build();
+```
+
+## Configurable
+
+Although, Prettier Java is opinionated, there are tweaks.
+
+The most used seetings `.prettierrc.yaml` are
+
+- `tabWidth: 4` to have an indent of `4` (instead of `2`) and
+- `experimentalOperatorPosition: start` to have operators at the beginning of a code line (and not at the end).