Revise README for Meridia V2 and installation details

Updated README to reflect changes in versioning and installation instructions.

Author: ridit-jangra

README.md

@@ -1,18 +1,21 @@
-Development happens on v2 (branch).
+# Meridia V2 (Alpha)
 
-# Meridia
+## ⚠️ Important
 
-<img src="./resources/whole.png" style="border-radius: 8px" />
+- v2 branch → Complete core rewrite (Active development)
+- main branch → Stable V1 release
 
-Meridia is a next-gen code editor that blends coding, debugging, and customizable.
+![Meridia Preview](./public/preview/video/2026-03-01.gif)
+
+Meridia is a modern code editor where you code, and AI collaborates — never takes control.
 
 Visit [meridia.dev](https://meridia.dev) for more info.
 
 # Documentation
 
-If you want to read about using Meridia or developing extensions in Meridia, the [Documentation](https://docs.meridia.dev) is available.
+If you want to read about using Meridia or developing extensions in Meridia, the [Documentation](https://meridia.dev/docs) is available.
 
-# Installing
+# Installation
 
 ## Prerequisites
 
@@ -30,6 +33,85 @@ Download the latest [Meridia App Image](https://meridia.dev/download)
 
 Meridia will automatically update when a new release is available.
 
+# Installing Locally
+
+## Prerequisites
+
+- [Git](https://git-scm.com/)
+- [Node 20.x.x](https://nodejs.org/)
+- [Python 13+](https://python.org/)
+- [NPM or Yarn](https://npmjs.com/)
+- [Ollama](https://ollama.com/download) (optional, for AI features)
+
+### Clone the repository (v2 branch)
+
+```bash
+git clone https://github.com/ridit-jangra/Meridia -b v2
+cd Meridia
+```
+
+### Install Dependencies
+
+Using npm
+
+```bash
+npm install
+```
+
+Using yarn
+
+```bash
+yarn install
+```
+
+### Rebuild Native Modules
+
+Using npm
+
+```
+npm rebuild
+```
+
+Using yarn
+
+```bash
+yarn run rebuild
+```
+
+### Run Development Mode
+
+Using npm
+
+```
+npm run dev
+```
+
+Using yarn
+
+```
+yarn dev
+```
+
+### Build package
+
+Using npm
+
+```
+npm run build
+```
+
+Using yarn
+
+```
+yarn build
+```
+
+# Contributing
+
+Contributions are welcome.
+
+Please read `CONTRIBUTING.md` before submitting a PR.
+
 # License
 
 [Mit](https://github.com/ridit-jangra/Meridia/blob/main/LICENSE)