Add README detail

README.md

@@ -6,6 +6,25 @@ This repo contains instructions for customers of the http4k LTS programme.
 
 The LTS version of the http4k libraries are hosted in a private Maven repository, at [https://maven.http4k.org]. Access to these artifacts requires credentials that will be issued with your LTS subscription.
 
+Configuring Gradle to use the private Maven repo can be done by using a custom repository: 
+
+```kotlin
+val ltsUser: String by project
+val ltsPassword: String by project
+
+repositories {
+    maven {
+        credentials {
+            username = ltsUser
+            password = ltsPassword
+        }
+        url = URI("https://maven.http4k.org/maven2")
+    }
+
+    mavenCentral()
+}
+```
+
 To set up access in your Gradle build, you will need to pass the credentials in some fashion. The easiest way to do this is to put them in your `gradle.properties` or to pass them on the command line. The properties are `ltsUser` and `ltsPassword`:
 
 ```shell