diff --git a/.gitignore b/.gitignore
index 4a6a670..28003ab 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,7 +24,8 @@ hs_err_pid*
 replay_pid*
 
 .idea
+.DS_Store
 
 !gradle/wrapper/gradle-wrapper.jar
 build/
-.gradle/
\ No newline at end of file
+.gradle/
diff --git a/demo/wiremock_state_extension_webinar.pdf b/demo/wiremock_state_extension_webinar.pdf
new file mode 100644
index 0000000..c7e2432
Binary files /dev/null and b/demo/wiremock_state_extension_webinar.pdf differ