diff --git a/.gitignore b/.gitignore
index 1b6985c..4924758 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,6 @@
 
 # Ignore Gradle build output directory
 build
+
+# Ignore bin
+bin
\ No newline at end of file
diff --git a/lib/gson-2.13.1.jar b/lib/gson-2.13.1.jar
new file mode 100644
index 0000000..159b930
Binary files /dev/null and b/lib/gson-2.13.1.jar differ
diff --git a/reservationsystem_classdiagram_0829.pdf b/reservationsystem_classdiagram_0829.pdf
new file mode 100644
index 0000000..7771dfd
Binary files /dev/null and b/reservationsystem_classdiagram_0829.pdf differ