diff --git a/Cargo.toml b/Cargo.toml
index 84c2eaa..04b5649 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "microtools"
 version = "0.1.0"
-authors = ["Bodo Junglas <junglas@objectcode.de>"]
+authors = ["Bodo Junglas <junglas@objectcode.de>", "Ihor Mordashev <ihor.mordashev@21re.de"]
 edition = "2018"
 
 [dependencies]
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..4a82e25
--- /dev/null
+++ b/README.md
@@ -0,0 +1,2 @@
+# microtools-rs
+Minimal toolbox to write backend services in rust
diff --git a/src/auth_middleware.rs b/src/auth_middleware.rs
index 8c8ba3e..13645c0 100644
--- a/src/auth_middleware.rs
+++ b/src/auth_middleware.rs
@@ -32,10 +32,7 @@ impl AuthContext {
 }
 
 pub fn admin_scope(auth_context: &AuthContext) -> bool {
-  match auth_context.subject {
-    Subject::Admin(_) => true,
-    _ => false,
-  }
+  matches!(auth_context.subject, Subject::Admin(_))
 }
 
 impl<S> FromRequest<S> for AuthContext {
diff --git a/src/gatekeeper.rs b/src/gatekeeper.rs
index 3e7b397..0b26a0c 100644
--- a/src/gatekeeper.rs
+++ b/src/gatekeeper.rs
@@ -43,8 +43,8 @@ impl TokenCreator {
     let mut scopes_map: Map<String, Value> = Map::new();
 
     for (key, values_raw) in scopes {
-      let values = values_raw.iter().map(|v| Value::String(v.to_string())).collect();
-      scopes_map.insert(key.to_string(), Value::Array(values));
+      let values = values_raw.iter().map(|&v| Value::String(v.to_string())).collect();
+      scopes_map.insert((*key).to_string(), Value::Array(values));
     }
 
     claims.insert("scopes".to_string(), Value::Object(scopes_map));
diff --git a/src/problem.rs b/src/problem.rs
index 984b51e..c22c84f 100644
--- a/src/problem.rs
+++ b/src/problem.rs
@@ -1,9 +1,5 @@
-use actix;
-use actix_web;
 use log::error;
 use serde_derive::{Deserialize, Serialize};
-use serde_json;
-use std;
 
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
 pub struct Problem {
diff --git a/src/status.rs b/src/status.rs
index a38a133..d15f68f 100644
--- a/src/status.rs
+++ b/src/status.rs
@@ -20,7 +20,7 @@ impl Status {
   }
 }
 
-pub fn status_resource<V: ToString, S: 'static>(version: Option<V>) -> impl FnOnce(&mut Resource<S>) -> () {
+pub fn status_resource<V: ToString, S: 'static>(version: Option<V>) -> impl FnOnce(&mut Resource<S>) {
   let status = Status::new(version);
 
   |r: &mut Resource<S>| r.method(Method::GET).f(move |_| status.status())