Update README.md

Author: Twixes

README.md

@@ -3,13 +3,22 @@
 [![npm package](https://img.shields.io/npm/v/posthog-plugin-hello-world?style=flat-square)](https://www.npmjs.com/package/posthog-plugin-hello-world)
 [![License: MIT](https://img.shields.io/badge/License-MIT-red.svg?style=flat-square)](https://opensource.org/licenses/MIT)
 
-This is an exemplary PostHog plugin. It adds property `"greeting"` to every event with a configurable value – `"Hello world!"` by default.
+This is an exemplary PostHog plugin. It adds property `"greeting"` to every event, with a configurable value (by default: `"Hello world!"`).
 
-A few goodies included with this plugin:
--   TypeScript for best reliability and development experience,
--   Jest for convenient testing,
--   Prettier and ESLint for code style and best practices – both handled by pre-commit hooks,
--   GitHub Actions set up to run code quality and functionality tests in pull requests, and also to publish a new npm release when the package version is incremented in `main` (the latter requires an automation type npm access token to be set with a repo secret `NPM_TOKEN`).
+Feel free to use it as a base for your own plugins!
+
+## Goodies included
+
+-   TypeScript for best reliability and development experience
+-   Jest for convenient testing
+-   Prettier and ESLint for code style and best practices – both handled by pre-commit hooks
+-   GitHub Actions set up to run code quality and functionality tests in pull requests, and also to publish a new npm release when the package version is incremented in `main` (the latter requires an automation type npm access token to be set with a repo secret `NPM_TOKEN`)
+
+## Installation
+
+1. Open PostHog.
+1. Head to the Plugins page from the sidebar.
+1. Either install Hello World from Available plugins, or install from URL using this repository's URL.
 
 ## Questions?