chore: add hardhat migration guide prerequisites (#247)

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# Description

To ensure a smooth migration and compatibility with your plugins, the
following prerequisites must be met:

Node.js Version
Minimum: v18.x or later

Hardhat Version
Minimum: 2.16.0

---------

Co-authored-by: Marko Arambasic <makiarambasic@gmail.com>

content/00.build/40.tooling/20.hardhat/20.guides/20.migrating-to-zksync.md

@@ -3,6 +3,12 @@ title: Migrating Hardhat project to ZKsync Era
 description: Learn how to migrate an existing Hardhat project to ZKsync Era.
 ---
 
+## Prerequisites
+
+- [Node.js](https://nodejs.org) version 18 or newer is required.
+
+- To ensure compatibility with our plugins, make sure that [Hardhat](https://hardhat.org) version 2.16.0 or newer is installed in your project.
+
 ## Project setup
 
 The `@matterlabs/hardhat-zksync` plugin includes all the necessary tools to compile, test, deploy, and verify contracts on ZKsync.

content/00.build/40.tooling/20.hardhat/30.plugins/100.hardhat-zksync-ethers.md

@@ -17,6 +17,13 @@ Ensure you are using the correct version of the plugin with ethers:
 Examples are adopted for plugin version **>=1.0.0**
 ::
 
+## Prerequisite
+
+To use `hardhat-zksync-ethers` in your project, ensure the following:
+
+- Node.js version 18 or higher is installed.
+- Hardhat version 2.16.0 or higher is installed as a dependency.
+
 ## Installation
 
 [@matterlabs/hardhat-zksync-ethers](https://www.npmjs.com/package/@matterlabs/hardhat-zksync-ethers)

content/00.build/40.tooling/20.hardhat/30.plugins/120.hardhat-zksync-node.md

@@ -23,6 +23,13 @@ Ensure you are using the correct version of the plugin with ethers:
 
 ::
 
+## Prerequisite
+
+To use `hardhat-zksync-node` in your project, ensure the following:
+
+- Node.js version 18 or higher is installed.
+- Hardhat version 2.16.0 or higher is installed as a dependency.
+
 ## Installation
 
 [@matterlabs/hardhat-zksync-node](https://www.npmjs.com/package/@matterlabs/hardhat-zksync-node)

content/00.build/40.tooling/20.hardhat/30.plugins/35.hardhat-zksync.md

@@ -22,6 +22,13 @@ You can find a list of all [official plugins](/build/tooling/hardhat/guides/gett
 Also, ZKsync supports some other [popular plugins](/build/tooling/hardhat/plugins/other-plugins) that can be used.
 ::
 
+### Prerequisite
+
+To use `hardhat-zksync` in your project, ensure the following:
+
+- Node.js version 18 or higher is installed.
+- Hardhat version 2.16.0 or higher is installed as a dependency.
+
 ### Installation
 
 Add the latest version of this plugin to your project with the following command:

content/00.build/40.tooling/20.hardhat/30.plugins/40.hardhat-zksync-solc.md

@@ -10,9 +10,10 @@ Learn more about the latest updates in the [changelog](%%zk_git_repo_hardhat-zks
 
 ## Prerequisite
 
-To use the `hardhat-zksync-solc` in your project, we recommend that:
+To use `hardhat-zksync-solc` in your project, ensure the following:
 
-- You have Node installed and `yarn` or `npm` package manager.
+- Node.js version 18 or higher is installed.
+- Hardhat version 2.16.0 or higher is installed as a dependency.
 
 ## Installation
 

content/00.build/40.tooling/20.hardhat/30.plugins/50.hardhat-zksync-vyper.md

@@ -11,9 +11,10 @@ Learn more about the latest updates in the [changelog](%%zk_git_repo_hardhat-zks
 
 ## Prerequisite
 
-To use the `hardhat-zksync-vyper` in your project, we recommend that:
+To use `hardhat-zksync-vyper` in your project, ensure the following:
 
-- You have Node installed and `yarn` or `npm` package manager.
+- Node.js version 18 or higher is installed.
+- Hardhat version 2.16.0 or higher is installed as a dependency.
 
 ## Installation
 

content/00.build/40.tooling/20.hardhat/30.plugins/60.hardhat-zksync-deploy.md

@@ -9,9 +9,10 @@ or `@matterlabs/hardhat-zksync-vyper` plugins.
 
 ## Prerequisite
 
-To use the `hardhat-zksync-deploy` in your project, we recommend that:
+To use `hardhat-zksync-deploy` in your project, ensure the following:
 
-- You have a Node installation and `yarn` or `npm` package manager.
+- Node.js version 18 or higher is installed.
+- Hardhat version 2.16.0 or higher is installed as a dependency.
 - You are already familiar with deploying smart contracts on ZKsync Era.
 
 If not, please refer to the first section of the [ZKsync 101 material](/build/start-coding/zksync-101/hello-zksync).

content/00.build/40.tooling/20.hardhat/30.plugins/70.hardhat-zksync-upgradable.md

@@ -37,6 +37,13 @@ Ensure that you're using the correct version of OpenZeppelin Contracts Upgradabl
 
 ::
 
+## Prerequisite
+
+To use `hardhat-zksync-upgradable` in your project, ensure the following:
+
+- Node.js version 18 or higher is installed.
+- Hardhat version 2.16.0 or higher is installed as a dependency.
+
 ## Installation
 
 ::callout{icon="i-heroicons-exclamation-triangle" color="amber"}

content/00.build/40.tooling/20.hardhat/30.plugins/80.hardhat-zksync-verify.md

@@ -28,6 +28,13 @@ Ensure you are using the correct version of the plugin with ethers:
   - Compatible with ethers **v6** (⭐ Recommended)
 ::
 
+## Prerequisite
+
+To use `hardhat-zksync-verify` in your project, ensure the following:
+
+- Node.js version 18 or higher is installed.
+- Hardhat version 2.16.0 or higher is installed as a dependency.
+
 ## Setup
 
 The [@matterlabs/hardhat-zksync-verify](https://www.npmjs.com/package/@matterlabs/hardhat-zksync-verify) plugin

content/00.build/40.tooling/20.hardhat/30.plugins/90.hardhat-zksync-verify-vyper.md

@@ -41,6 +41,13 @@ Ensure you are using the correct version of the plugin with ethers:
   - Compatible with ethers **v6** (⭐ Recommended)
 ::
 
+## Prerequisite
+
+To use `hardhat-zksync-verify-vyper` in your project, ensure the following:
+
+- Node.js version 18 or higher is installed.
+- Hardhat version 2.16.0 or higher is installed as a dependency.
+
 ## Setup
 
 The [@matterlabs/hardhat-zksync-verify-vyper](https://www.npmjs.com/package/@matterlabs/hardhat-zksync-verify-vyper) plugin