chore: clean up our README to be less Celestia centric. (#1639)

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## Overview

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This updates the README to be more aligned with how the docs are
structured.

It removes all the Celestia specific information and the compatibility
table.

Co-authored-by: Tomasz Zdybał <tomek@zdybal.lap.pl>

Author: MSevey

README.md

@@ -1,6 +1,6 @@
 # Rollkit
 
-A modular framework for rollups, with an ABCI-compatible client interface. For more in-depth information about Rollkit, please visit our [website](https://rollkit.dev).
+A modular framework for rollups, with an ABCI-compatible client interface. For more in-depth information about Rollkit, please visit our [website][docs].
 
 <!-- markdownlint-disable MD013 -->
 [![build-and-test](https://github.com/rollkit/rollkit/actions/workflows/test.yml/badge.svg)](https://github.com/rollkit/rollkit/actions/workflows/test.yml)
@@ -10,14 +10,17 @@ A modular framework for rollups, with an ABCI-compatible client interface. For m
 [![GoDoc](https://godoc.org/github.com/rollkit/rollkit?status.svg)](https://godoc.org/github.com/rollkit/rollkit)
 <!-- markdownlint-enable MD013 -->
 
-## Rollkit CLI
+## Using Rollkit
+### Rollkit CLI
+
+The easiest way to use rollkit is via the rollkit CLI.
 
 Requires Go version >= 1.21.
 
 A cli tool that allows you to run different kinds of nodes for a rollkit network
 while also helping you generate the required configuration files
 
-### Install
+#### Install
 
 To install `rollkit`, simply run the following command at the root of the
 rollkit repo
@@ -32,78 +35,45 @@ The latest Rollkit is now installed. You can verify the installation by running:
 rollkit version
 ```
 
+#### Quick Start
+
+You can spin up a local rollkit network with the following command:
+
+```bash
+rollkit start
+```
+
 Explore the CLI documentation [here](./cmd/rollkit/docs/rollkit.md)
 
 ## Building with Rollkit
 
 While Rollkit is a modular framework that aims to be compatible with a wide
 range of data availability layers, settlement layers, and execution
-environments, the most supported development environment is building on Celestia
-as a data availability layer.
-
-### Building on Celestia
-
-You can build Rollkit rollups with [local-celestia-devnet](https://github.com/rollkit/local-celestia-devnet),
-[arabica devnet](https://docs.celestia.org/nodes/arabica-devnet) and
-[mocha testnet](https://docs.celestia.org/nodes/mocha-testnet) and
-[mainnet beta](https://docs.celestia.org/nodes/mainnet).
-
-#### Compatibility
-
-| network               | rollkit | celestia-node | celestia-app |
-| --------------------- | ------- | ------------- | ------------ |
-| local-celestia-devnet | v0.13.0 | v0.13.1       | v1.7.0       |
-| arabica               | v0.13.0 | v0.13.1       | v1.7.0       |
-| mocha                 | v0.13.0 | v0.13.1       | v1.7.0       |
-| mainnet               | v0.13.0 | v0.13.1       | v1.7.0       |
-
-<!-- markdownlint-disable MD013 -->
-| rollkit/cosmos-sdk | rollkit/cometbft | rollkit |
-|-|-|-|
-| [v0.50.5-rollkit-v0.13.0-no-fraud-proofs](https://github.com/rollkit/cosmos-sdk/releases/tag/v0.50.5-rollkit-v0.13.0-no-fraud-proofs) | v0.38.5| [v0.13.0](https://github.com/rollkit/rollkit/releases/tag/v0.13.0) |
-<!-- markdownlint-enable MD013 -->
-
-#### Local development environment
-
-The Rollkit v0.13.0 release is compatible with the
-[local-celestia-devnet](https://github.com/rollkit/local-celestia-devnet) [v0.13.1](https://github.com/rollkit/local-celestia-devnet/releases/tag/v0.13.1)
-release. This version combination is compatible with celestia-app
-[v1.7.0](https://github.com/celestiaorg/celestia-app/releases/tag/v1.7.0)
-and celestia-node
-[v0.13.1](https://github.com/celestiaorg/celestia-node/releases/tag/v0.13.1).
+environments.
 
-#### Arabica devnet and Mocha testnet
+Check out our tutorials on our [website][docs].
 
-The Rollkit v0.13.0 release is compatible with
-[arabica-11](https://docs.celestia.org/nodes/arabica-devnet/) devnet
-[mocha-4](https://docs.celestia.org/nodes/mocha-testnet/) testnet which are running
-celestia-app
-[v1.7.0](https://github.com/celestiaorg/celestia-app/releases/tag/v1.7.0)
-and celestia-node
-[v0.13.1](https://github.com/celestiaorg/celestia-node/releases/tag/v0.13.1).
 
-#### Celestia mainnet
-
-The Rollkit v0.13.0 release is compatible with [mainnet-beta](https://docs.celestia.org/nodes/mainnet/)
-which is running celestia-app
-[v1.7.0](https://github.com/celestiaorg/celestia-app/releases/tag/v1.7.0)
-and celestia-node
-[v0.13.1](https://github.com/celestiaorg/celestia-node/releases/tag/v0.13.1).
+## Contributing
 
-#### Cometbft v0.37.x and Cosmos-SDK v0.47.x
+We welcome your contributions! Everyone is welcome to contribute, whether it's
+in the form of code, documentation, bug reports, feature
+requests, or anything else.
 
-The Rollkit v0.10.7 release is compatible with Cometbft v0.37.2 and Cosmos-SDK
-v0.47.6. However, this version is no longer supported for future developments and
-it is recommended to use Rollkit v0.13.x.
+If you're looking for issues to work on, try looking at the
+[good first issue list](https://github.com/rollkit/rollkit/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22).
+Issues with this tag are suitable for a new external contributor and is a great
+way to find something you can help with!
 
-### Tools
+See
+[the contributing guide](https://github.com/rollkit/rollkit/blob/main/CONTRIBUTING.md)
+for more details.
 
-1. Install [golangci-lint](https://golangci-lint.run/welcome/install/)
-1. Install [markdownlint](https://github.com/DavidAnson/markdownlint)
-1. Install [hadolint](https://github.com/hadolint/hadolint)
-1. Install [yamllint](https://yamllint.readthedocs.io/en/stable/quickstart.html)
+Please join our
+[Community Discord](https://discord.com/invite/YsnTPcSfWQ)
+to ask questions, discuss your ideas, and connect with other contributors.
 
-## Helpful commands
+### Helpful commands
 
 ```sh
 # Run unit tests
@@ -120,38 +90,24 @@ make proto-lint
 
 ```
 
-## Contributing
-
-We welcome your contributions! Everyone is welcome to contribute, whether it's
-in the form of code, documentation, bug reports, feature
-requests, or anything else.
-
-If you're looking for issues to work on, try looking at the
-[good first issue list](https://github.com/rollkit/rollkit/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22).
-Issues with this tag are suitable for a new external contributor and is a great
-way to find something you can help with!
-
-See
-[the contributing guide](https://github.com/rollkit/rollkit/blob/main/CONTRIBUTING.md)
-for more details.
+### Tools
 
-Please join our
-[Community Discord](https://discord.com/invite/YsnTPcSfWQ)
-to ask questions, discuss your ideas, and connect with other contributors.
+1. Install [golangci-lint](https://golangci-lint.run/welcome/install/)
+1. Install [markdownlint](https://github.com/DavidAnson/markdownlint)
+1. Install [hadolint](https://github.com/hadolint/hadolint)
+1. Install [yamllint](https://yamllint.readthedocs.io/en/stable/quickstart.html)
 
 ## Dependency graph
 
 To see our progress and a possible future of Rollkit visit our [Dependency
 Graph](https://github.com/rollkit/rollkit/blob/main/specs/src/specs/rollkit-dependency-graph.md).
 
-## Code of Conduct
-
-See our Code of Conduct [here](https://docs.celestia.org/community/coc).
-
 ## Audits
 
 | Date       | Auditor                                       | Version                                                                             | Report                                                  |
 |------------|-----------------------------------------------|-------------------------------------------------------------------------------------|---------------------------------------------------------|
 | 2024/01/12  | [Informal Systems](https://informal.systems/) | [eccdd...bcb9d](https://github.com/rollkit/rollkit/commit/eccdd0f1793a5ac532011ef4d896de9e0d8bcb9d)   | [informal-systems.pdf](specs/audit/informal-systems.pdf) |
 | 2024/01/10 | [Binary Builders](https://binary.builders/)   | [eccdd...bcb9d](https://github.com/rollkit/rollkit/commit/eccdd0f1793a5ac532011ef4d896de9e0d8bcb9d) | [binary-builders.pdf](specs/audit/binary-builders.pdf)   |
 
+
+[docs]: https://rollkit.dev