docs: fix scoped npm package references (#67)

* docs: fix scoped npm package references

* docs: fix contributing link in PR template

Author: benjaminmodayil

.github/PULL_REQUEST_TEMPLATE.md

@@ -15,4 +15,4 @@ Closes #
 - [ ] My code follows the existing style of this project
 - [ ] I have added/updated tests (if applicable)
 - [ ] I have updated documentation (if applicable)
-- [ ] I have read the [CONTRIBUTING.md](../CONTRIBUTING.md)
+- [ ] I have read the [CONTRIBUTING.md](https://github.com/open-gitagent/gitagent/blob/main/CONTRIBUTING.md)

README.md

@@ -4,7 +4,7 @@
 
 # gitagent | your repository becomes your agent
 
-[![npm version](https://img.shields.io/npm/v/@shreyaskapale/gitagent)](https://www.npmjs.com/package/@shreyaskapale/gitagent)
+[![npm version](https://img.shields.io/npm/v/@open-gitagent/gitagent)](https://www.npmjs.com/package/@open-gitagent/gitagent)
 [![CI](https://github.com/open-gitagent/gitagent/actions/workflows/ci.yml/badge.svg)](https://github.com/open-gitagent/gitagent/actions/workflows/ci.yml)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 [![Spec: v0.1.0](https://img.shields.io/badge/spec-v0.1.0-blue)](https://github.com/open-gitagent/gitagent/blob/main/spec/SPECIFICATION.md)

docs.md

@@ -48,7 +48,7 @@ A framework-agnostic, git-native standard for defining AI agents.
 ## Installation
 
 ```bash
-npm install -g gitagent
+npm install -g @open-gitagent/gitagent
 ```
 
 Verify:

examples/gitagent-helper/skills/get-started/SKILL.md

@@ -17,7 +17,7 @@ When a user is new to gitagent, wants to set up their first agent, or asks "how
 
 ### Installation
 ```bash
-npm install -g gitagent
+npm install -g @open-gitagent/gitagent
 gitagent --version
 ```