Added file for CLI documentation
diff --git a/doc/cli.rst b/doc/cli.rst
new file mode 100644
index 0000000..911c446
--- /dev/null
+++ b/doc/cli.rst
@@ -0,0 +1,5 @@
+Commandline interface
+==================================================
+
+.. todo::
+    write me!
diff --git a/doc/index.rst b/doc/index.rst
index df81a77..5486224 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -38,6 +38,7 @@
     installation
     licence
     usage
+    cli
     compatibility
     reference