Update the README (#224)

Signed-off-by: Radoslav Dimitrov <radoslav@stacklok.com>

Author: rdimitrov

CONTRIBUTING.md

@@ -1,4 +1,4 @@
-# Contributing to Minder
+# Contributing to minder rules and profiles
 
 Thank you for considering contributing to the Minder rules library! We welcome contributions from the community and are excited to work with you.
 

README.md

@@ -1,34 +1,59 @@
+[![License: Apache 2.0](https://img.shields.io/badge/License-Apache2.0-brightgreen.svg)](https://opensource.org/licenses/Apache-2.0)
+
 # Minder Rules and Profiles
 
-A repository containing Minder rules and profiles recommended by your friends at Stacklok
+A repository containing Minder rules and profiles describing security policies and various tool integrations.
+
+## What are rule types, profiles, and data sources?
+
+Minder is a tool that allows you to define security policies and integrate with various tools to enforce those policies.
+Its engine is designed to be extensible through rule types, profiles and data sources, allowing you to integrate your own
+logic and processes.
+
+A profile defines your security policies that you want to apply to your software supply chain. Profiles contain rules
+(or rule types) that query data in a provider, and specifies whether Minder will issue alerts or perform automatic
+remediations when an entity is not in compliance with the policy.
+
+Profiles in Minder allow you to group and manage rules for various entity types, such as `repositories`, `pull requests`,
+`artifacts`, etc., across your registered GitHub repositories.
+
+Data sources are designed to enrich the information available about an entity, allowing us to make more informed policy
+evaluations.
+Unlike providers, which create entities, a data source offers additional information about an existing entity or one of
+its specific attributes.
+The entity itself, however, always originates from a provider.
+
+## How to get started with writing rules and profiles?
 
-# Rules types
+To get started with writing rules and profiles, you can check the following resources:
+- [How to write a rule type](https://mindersec.github.io/how-to/custom-rules)
+- [How to write a rule type using Rego](https://mindersec.github.io/how-to/writing-rules-in-rego)
+- [How to use mindev to develop and debug rule types](https://mindersec.github.io/how-to/mindev)
+- [How to write rules and profiles - YouTube](https://www.youtube.com/watch?v=eXp0nyd72d4)
+- [Minder documentation](https://mindersec.github.io)
+- [Rego language tutorial](https://www.openpolicyagent.org/docs/latest/policy-language/)
 
-Reference rule types are available in the `rule-types` directory. To take these rule types
-into use, you'll need to instantiate them in a Minder instance. For example, to use the
-reference rules recommended for GitHub, use the following command:
-    
-```bash
-minder ruletype create -f rule-types/github
-```
+Apart from that, you can also check the reference rules and profiles in this repository to get an idea of how to write, structure, and organize them.
 
-# Profiles
+- Rule types: the reference rule types are available in the `rule-types` directory. To take these rule types
+  into use, you'll need to instantiate them in a Minder instance. For example, to use the
+  reference rules recommended for GitHub, use the following command - `minder ruletype create -f rule-types/github`.
+- Profiles: the reference profiles are available in the `profiles` directory. To take a profile
+  into use, you'll need to instantiate it in a Minder instance. For example, to use the
+  reference profile recommended for GitHub, use the following command - `minder profile create -f profiles/github/profile.yaml`.
+- Data sources: the reference data sources are available in the `data-sources` directory. To take a data source
+  into use, you'll need to instantiate it in a Minder instance. For example, to instantiate the
+  reference data source for using OSV as a data source, use the following command - `minder datasource create -f data-sources osv.yaml`.
 
-Reference profiles are available in the `profiles` directory. To take a profile
-into use, you'll need to instantiate it in a Minder instance. For example, to use the
-reference profile recommended for GitHub, use the following command:
+## How to contribute?
 
-```bash
-minder profile create -f profiles/github/profile.yaml
-```
+We welcome contributions!
+If you came across a rule type, profile, or data source that you think would be useful to others, please consider contributing it back to the community.
 
-# Data Sources
+If you have questions or need help getting started, feel free to reach out on the [`#minder` channel on OpenSSF Slack](https://openssf.slack.com/archives/C07SP9RSM2L) or open an issue.
 
-Reference data sources are available in the `data-sources` directory. To take a data source
-into use, you'll need to instantiate it in a Minder instance. For example, to instantiate the
-reference data source for using OSV as a data source, use the following command:
+You can check our [CONTRIBUTING.md](CONTRIBUTING.md) guidelines for more information on how to contribute to this repository.
 
-```bash
-minder datasource create -f data-sources osv.yaml
-```
+## License
 
+This repository is licensed under the [Apache 2.0 License](./LICENSE).