Add configuration file to semver API

This aspect of Ceres is also part of the public API. A breaking change
in the configuration file format will require a version change which
indicates that.

1 files changed, 1 insertions, 0 deletions

diff --git a/README.md b/README.md
index d5e7280..b415daa 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,7 @@ define a "public API". These aspects of Ceres together form the public API:
 - command line interface
 - HTTP interface
 - data storage format
+- configuration file format and structure
 
 As soon as version 1.0.0 is reached these aspects are stable.