Preparation for sharing

- rustfmt
- clippy
- comments
- README

src/rule/mod.rs

@@ -1,15 +1,12 @@
-// mod executor;
-mod rule_error;
-mod repository;
-mod prepare_rule;
 mod matcher;
-mod update_first_seq;
-mod state;
 mod matcher_second;
+mod prepare_rule;
+mod repository;
+mod rule_error;
+mod state;
+mod update_first_seq;
 mod vec_attrs;
 
-// pub use rule::Rule;
+pub use matcher_second::AnyMatcher;
+pub use repository::{Repo, Repository};
 pub use rule_error::RuleError;
-pub use repository::{Repository, Repo};
-
-pub use matcher_second::AnyMatcher;