Implement --list-sites and --update-sites

and validation on supplied site argument.

1 files changed, 1 insertions, 0 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 9e33491..44cd9c5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,3 +14,4 @@ flate2 = "1.0"
 reqwest = { version = "0.10", features = ["blocking"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
+serde_yaml = "0.8"