diff --git a/README.md b/README.md
index e4bd4f02..319988be 100644
--- a/README.md
+++ b/README.md
@@ -60,13 +60,14 @@ If you have at least Docker, the Java JDK and Gradle installed in appropriate ve
-d '{ "prefix":"baa", "reference":80001, "adminUserName":"admin@baa.example.com" }' \
-X POST http://localhost:8080/api/customers
-**ⓘ**
-'mike@hostsharing.net' and 'sven@hostsharing.net' are Hostsharing hostmaster accounts coming from the example data which is automatically inserted in Testcontainers and Development environments.
+If you wonder who 'mike@hostsharing.net' and 'sven@hostsharing.net' are and where the data comes from:
+Mike and Sven are just example Hostsharing hostmaster accounts as part of the example data which is automatically inserted in Testcontainers and Development environments.
Also try for example 'admin@aaa.example.com' or 'unknown@example.org'.
-**ⓘ**
If you want a formatted JSON output, you can pipe the result to `jq` or similar.
+And to see the full, currently implemented, API, open http://localhost:8080/swagger-ui/index.html.
+
If you still need to install some of these tools, find some hints in the next chapters.
diff --git a/build.gradle b/build.gradle
index f2325df4..22b61874 100644
--- a/build.gradle
+++ b/build.gradle
@@ -28,6 +28,7 @@ dependencies {
implementation 'org.springframework.boot:spring-boot-starter-hateoas'
implementation 'org.springframework.boot:spring-boot-starter-jdbc'
implementation 'org.springframework.boot:spring-boot-starter-web'
+ implementation 'org.springdoc:springdoc-openapi-ui:1.6.9'
implementation 'org.liquibase:liquibase-core'
implementation 'org.springframework.data:spring-data-rest-hal-explorer'
implementation 'com.vladmihalcea:hibernate-types-55:2.17.1'