docs: upade install section in docs (#72)

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This PR updates the install section in the LeanIMT docs.

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Author: vplasencia

crates/lean-imt/README.md

@@ -28,18 +28,18 @@ The LeanIMT is an optimized binary version of the [IMT](https://github.com/priva
 
 ## 🛠 Install
 
-Add the `zk-kit-lean-imt` crate to your `cargo.toml`:
+Install the `zk-kit-lean-imt` crate with `cargo`:
 
-```toml
-zk-kit-lean-imt = { git = "https://github.com/privacy-scaling-explorations/zk-kit.rust", package = "zk-kit-lean-imt" }
+```commandline
+cargo add zk-kit-lean-imt
 ```
 
 ## 📜 Usage
 
 ```rust
+use lean_imt::hashed_tree::{HashedLeanIMT, LeanIMTHasher};
 use std::collections::hash_map::DefaultHasher;
 use std::hash::{Hash, Hasher};
-use zk_kit_lean_imt::hashed_tree::{HashedLeanIMT, LeanIMTHasher};
 
 // Setup hasher
 struct SampleHasher;

crates/lean-imt/src/lib.rs

@@ -4,10 +4,10 @@
 //!
 //! ## Quick Start
 //!
-//! Add the crate to your Cargo.toml:
+//! Install the `zk-kit-lean-imt` crate with `cargo`:
 //!
-//! ```toml
-//! zk-kit-lean-imt = { git = "https://github.com/privacy-scaling-explorations/zk-kit.rust", package = "zk-kit-lean-imt" }
+//! ```commandline
+//! cargo add zk-kit-lean-imt
 //! ```
 //!
 //! ## Example