Add back a brief explanation about the imports

docs/tutorials/getting-started/full-installation-tutorial.md

@@ -10,7 +10,7 @@ Information on the modalities used throughout this installation process can be f
     - [Prerequisites](#prerequisites)
     - [Building the Contract and Tests](#building-the-contract-and-tests)
 2. [Reviewing the Contract Implementation](#reviewing-the-contract-implementation)
-    - [Required Crates](#required-crates)
+    - [Crates and Modules](#crates-and-modules)
     - [Initialization Flow](#Initialization-flow)
     - [Contract Entrypoints](#contract-entrypoints)
 3. [Installing the Contract](#installing-the-contract)
@@ -74,6 +74,22 @@ There are four steps to follow when you intend to create your implementation of
 3. Compile the customized code to Wasm.
 4. Send the customized Wasm as a deploy to a Casper network.
 
+### Crates and Modules
+
+The contract implementation starts by importing the following essential Casper crates:
+
+- [casper_contract](https://docs.rs/casper-contract/latest/casper_contract/index.html) - A Rust library for writing smart contracts on Casper networks
+- [casper_types](https://docs.rs/casper-types/latest/casper_types/) - Types used to allow the creation of Wasm contracts and tests for use on Casper networks
+
+The contract code defines additional modules in the `contract/src` folder:
+
+- `constants` - Constant values required to run the contract code
+- `error` - Errors related to the NFT contract
+- `events` - A library for contract-emitted events
+- `metadata` - A module handling the contract's metadata and corresponding dictionary
+- `modalities` - Common expectations around contract usage and behavior
+- `utils` - Utility and helper functions to run the contract code
+
 ### Initialization Flow
 
 Initializing the contract happens through the `call() -> install_contract() -> init()` functions inside the [main.rs](../../../contract/src/main.rs) contract file. The `init()` function reads the runtime arguments and defines parameters such as `collection_name`, `collection_symbol`, and `total_token_supply`, among the other required and optional arguments described in the [README](../../../README.md#required-runtime-arguments).