chore: upgraded the OpenZeppelin examples to the latest version

chore: bump dependencies

README.md

@@ -6,7 +6,7 @@ A visualisation tool for [Solidity](https://solidity.readthedocs.io/) contracts
 1. [Unified Modeling Language (UML)](https://en.wikipedia.org/wiki/Unified_Modeling_Language) [class diagram](https://en.wikipedia.org/wiki/Class_diagram) generator for Solidity contracts.
 2. Contract storage layout diagrams.
 
-UML class diagram of Open Zeppelin's ERC20 token contracts generated from [version 2.5.1](https://github.com/OpenZeppelin/openzeppelin-solidity/tree/v2.5.1/contracts/token/ERC20)
+UML class diagram of Open Zeppelin's ERC20 token contracts generated from [version 4.7.3](https://github.com/OpenZeppelin/openzeppelin-contracts/tree/v4.7.3/contracts/token/ERC20)
 ![Open Zeppelin ERC20](./examples/OpenZeppelinERC20.svg)
 
 See more contract diagrams [here](./examples/README.md).
@@ -184,10 +184,10 @@ To generate a diagram of all contracts in a single Solidity file, the output fil
 sol2uml class path/to/contracts/root/folder/solidity/file.sol -f png -o ./someFile.png
 ```
 
-To generate a diagram of all Solidity files under the `contracts` and `node_modules/openzeppelin-solidity` folders. The output will be `contracts.svg` and `contracts.png` files in the working folder.
+To generate a diagram of all Solidity files under the `contracts` and `node_modules/@openzeppelin` folders. The output will be `contracts.svg` and `contracts.png` files in the working folder.
 
 ```bash
-sol2uml class ./contracts,node_modules/openzeppelin-solidity -f all -v
+sol2uml class ./contracts,node_modules/@openzeppelin -f all -v
 ```
 
 To generate a diagram of all Solidity files under the working folder ignoring and files under the `solparse`, `@solidity-parser` and `ethlint` folders, which will be under the `node_modules` folder.

examples/README.md

@@ -14,16 +14,7 @@ This uses the verified Solidity code loaded to Etherscan https://etherscan.io/ad
 ## Open Zeppelin ERC20 Tokens
 
 ![Open Zeppelin ERC20](./OpenZeppelinERC20.svg)
-Generated from version [2.3.0 contracts/token/ERC20](https://github.com/OpenZeppelin/openzeppelin-solidity/tree/v2.3.0/contracts/token/ERC20)
-
-## Open Zeppelin Base Contract
-
-![Open Zeppelin Base Contract](./OzToken.svg)
-Generated from version [2.5.1 contracts](https://github.com/OpenZeppelin/openzeppelin-solidity/tree/v2.5.1/contracts) with
-
-```
-sol2uml -b OzToken
-```
+Generated from version [4.7.3 contracts/token/ERC20](https://github.com/OpenZeppelin/openzeppelin-contracts/tree/v4.7.3/contracts/token/ERC20)
 
 ## mStable mUSD on Polygon
 
@@ -46,7 +37,7 @@ sol2uml -n bsc 0xB07c1C479b2Fdeb9f9B2d02300C13b328BF86d65
 ## Open Zeppelin All
 
 ![Open Zeppelin ERC20](./OpenZeppelinAll.svg)
-Generated from version [2.5.1 contracts](https://github.com/OpenZeppelin/openzeppelin-solidity/tree/v2.5.1/contracts)
+Generated from version [4.7.3 contracts](https://github.com/OpenZeppelin/openzeppelin-contracts/tree/v4.7.3/contracts)
 
 ## MakerDAO's SAI Token