docs: add useful info like linking and forcing framework to README

Author: 0xalpharush

README.md

@@ -5,17 +5,23 @@
 
 Library to help smart contract compilation. It includes support for:
 - Direct solc compilation
+- [Foundry](https://github.com/foundry-rs/foundry/)
+- [Hardhat](https://github.com/nomiclabs/hardhat)
 - [Brownie](https://github.com/iamdefinitelyahuman/brownie)
 - [Buidler](https://github.com/nomiclabs/buidler)
 - [Dapp](https://dapp.tools/dapp/)
 - [Embark](https://embark.status.im/)
 - [Etherlime](https://github.com/LimeChain/etherlime)
 - [Etherscan](https://etherscan.io/) (including several alt-chain explorers and testnets)
-- [Foundry](https://github.com/foundry-rs/foundry/)
-- [Hardhat](https://github.com/nomiclabs/hardhat)
 - [Truffle](https://truffleframework.com/)
 - [Waffle](https://github.com/EthWorks/Waffle)
 
+To force compilation with a specific framework, use the `--compile-force-framework` flag. For example, to force compilation with Hardhat:
+
+```shell
+crytic-compile . --compile-force-framework hardhat
+```
+
 See the [Configuration](https://github.com/crytic/crytic-compile/wiki/Configuration) documentation for advanced usages.
 
 The plugin is used in Trail of Bits tools, including:
@@ -27,21 +33,33 @@ The plugin is used in Trail of Bits tools, including:
 
 ## Installation
 
-```bash
+```shell
 pip3 install crytic-compile
 ```
 
 ## Usage
 
-### Standalone
-```bash
+In the root directory of your project e.g. same directory as `hardhat.config.js` or `foundry.toml`, run:
+
+```shell
 crytic-compile .
 ```
 
 Crytic-compile will generate `crytic-export/contracts.json` containing the AST/ABI and bytecodes of the contracts.
 
 Run `crytic-compile --help` for more options.
 
+## Library Linking
+
+If your project uses [libraries](https://docs.soliditylang.org/en/latest/contracts.html#libraries) with external functions, they can be linked to their deployed address with the `--compile-libraries` flag. For example, if you have a library `SafeMath` deployed at `0xff`, you can link it with:
+
+
+```shell
+crytic-compile . --compile-libraries --compile-libraries "(SafeMath, 0xff)"
+```
+
+If you are fuzzing with Echidna or Medusa, follow this [tutorial on linking libraries](https://secure-contracts.com/program-analysis/echidna/advanced/working-with-libraries.html?highlight=library#linking-libraries).
+
 ### As a library
 
 See the [library documentation](https://github.com/crytic/crytic-compile/wiki/Library-Documentation).