docs: add usage examples to readme

README.md

@@ -1 +1,31 @@
 # Style Guide · [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](https://github.com/glzr-io/actions/pulls) [![License](https://img.shields.io/github/license/glzr-io/actions)](https://github.com/glzr-io/actions/blob/main/LICENSE.md) [![Discord invite](https://img.shields.io/discord/1041662798196908052.svg?logo=discord&colorB=7289DA)](https://discord.gg/ud6z3qjRvM)
+
+## Prettier
+
+To use one of the Prettier config, add the following to `package.json`:
+
+```json
+{
+  "prettier": "@glzr/style-guide/prettier"
+}
+```
+
+## TSConfig
+
+To use one of the TSConfig files available, add the following to `tsconfig.json`:
+
+```json
+{
+  "extends": "@glzr/style-guide/tsconfig/solidjs-lib"
+}
+```
+
+**Available configs:**
+
+- Astro app (`@glzr/style-guide/tsconfig/astro-app`)
+- NestJS app (`@glzr/style-guide/tsconfig/nestjs-app`)
+- Node.js library (`@glzr/style-guide/tsconfig/nodejs-lib`)
+- SolidJS app (`@glzr/style-guide/tsconfig/solidjs-app`)
+- SolidJS library (`@glzr/style-guide/tsconfig/solidjs-lib`)
+
+[TotalTypescript](https://www.totaltypescript.com/tsconfig-cheat-sheet) is a great reference for TSConfig guidelines.