improve README and manifest metadata.

Cargo.toml

@@ -1,9 +1,21 @@
 [package]
 name = "identified_vec"
-version = "0.1.1"
+version = "0.1.2"
 edition = "2021"
+authors = ["Alexander Cyon <[email protected]>"]
 description = "Like HashSet but retaining INSERTION order and without `Hash` requirement on the Element type."
 license = "MIT"
+readme = "README.md"
+repository = "https://github.com/Sajjon/identified_vec"
+keywords = [
+    "identified-vec",
+    "identifiable",
+    "vec",
+    "orderset",
+    "set",
+    "hashset",
+]
+categories = ["data-structures"]
 
 [dependencies]
 anyerror = "0.1.12"

README.md

@@ -134,8 +134,19 @@ let numbers = IdentifiedVec::<u32, u32>::new_identifying_element(|e| *e);
 ```
 
 # Motivation
-None of the std collections `BTreeSet` and `HashSet` retain insertion order, `Vec` retains insertion order, however, it allows for duplicates. So if you want a collection of unique elements (Set-like) that does retain insertion order, `IdentifiedVec` suits your needs. Even better, the elements does not need to be to impl `Hash` nor ` Ord``.
+
+None of the std collections `BTreeSet` and `HashSet` retain insertion order, `Vec` retains insertion order, however, it allows for duplicates. So if you want a collection of unique elements (Set-like) that does retain insertion order, `IdentifiedVec` suits your needs. Even better, the elements does not need to be to impl `Hash` nor ` Ord`.
+
+# Features
+
+## Serde
+
+The `IdentifiedVecOf` type (which `Element` impl `Identifiable` trait) is `serde::Serializable` and `serde::Deserializable` as `Vec`.
+
+```toml
+identified_vec = { version = "0.1.2", features = ["serde"] }
+```
 
 ## Implementation Details
 
-An identified vec consists of a `Vec` of `ID`s keeping insertion order and a `HashMap` of id-element pairs, for contsant time lookip of element given an ID.
+An identified vec consists of a `Vec` of `ID`s keeping insertion order and a `HashMap` of id-element pairs, for contsant time lookip of element given an ID.

src/identified_vec.rs

@@ -414,7 +414,7 @@ where
 
     /// A read-only collection view for the elements contained in this array, as a `Vec<Elements>`.
     ///
-    /// - Complexity: O(1)
+    /// - Complexity: O(n)
     #[inline]
     pub fn elements(&self) -> Vec<&Element> {
         let mut elements_ordered = Vec::<&Element>::new();