diff --git a/README.md b/README.md
index ab9f34c..d876c6f 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,12 @@ TODO (no order):
 
 ### Building
 To compile, clone this repo and `mvn clean package`. \
-JAR will be in `target/`. Use the one without `original-`.
+JAR will be in `target/`. Use the one without `original-`. \
+By default, it's signed with the test key.
 
-### Versioning
-Basically, 0.9.x are prereleases
\ No newline at end of file
+#### Signing
+A test (and default) keystore is provided:
+- keystore: `testkeystore`
+- storepass: `123456`
+- alias: `testkey`
+You can override this by using `-Djarsigner.` arguments while compiling.