api: helm chart

issue: #7
diff --git a/controller/chart/README.md b/controller/chart/README.md
new file mode 100644
index 0000000..585cbc3
--- /dev/null
+++ b/controller/chart/README.md
@@ -0,0 +1,3 @@
+# PCloud API
+
+Provides PCloud API service.
\ No newline at end of file