feat: add readme

Signed-off-by: kjuulh <contact@kjuulh.io>

crates/post3-server/src/s3/handlers/buckets.rs

@@ -10,7 +10,7 @@ use crate::state::State as AppState;
 
 fn is_valid_bucket_name(name: &str) -> bool {
     let len = name.len();
-    if len < 3 || len > 63 {
+    if !(3..=63).contains(&len) {
         return false;
     }
     // Must contain only lowercase letters, numbers, hyphens, and periods
@@ -30,11 +30,7 @@ fn is_valid_bucket_name(name: &str) -> bool {
         return false;
     }
     // Must not be formatted as an IP address
-    if name.split('.').count() == 4
-        && name
-            .split('.')
-            .all(|part| part.parse::<u8>().is_ok())
-    {
+    if name.split('.').count() == 4 && name.split('.').all(|part| part.parse::<u8>().is_ok()) {
         return false;
     }
     true
@@ -166,10 +162,7 @@ pub async fn list_buckets<B: StorageBackend>(
             StatusCode::OK,
             [
                 ("Content-Type", "application/xml".to_string()),
-                (
-                    "x-amz-request-id",
-                    uuid::Uuid::new_v4().to_string(),
-                ),
+                ("x-amz-request-id", uuid::Uuid::new_v4().to_string()),
             ],
             responses::list_buckets_xml(&buckets),
         )