chore: remove old badges

README.md

@@ -1,8 +1,6 @@
 # @oclif/plugin-update
 
 [![Version](https://img.shields.io/npm/v/@oclif/plugin-update.svg)](https://npmjs.org/package/@oclif/plugin-update)
-[![CircleCI](https://circleci.com/gh/oclif/plugin-update/tree/main.svg?style=shield)](https://circleci.com/gh/oclif/plugin-update/tree/main)
-[![Appveyor CI](https://ci.appveyor.com/api/projects/status/github/oclif/plugin-update?branch=main&svg=true)](https://ci.appveyor.com/project/oclif/plugin-update/branch/main)
 [![Downloads/week](https://img.shields.io/npm/dw/@oclif/plugin-update.svg)](https://npmjs.org/package/@oclif/plugin-update)
 [![License](https://img.shields.io/npm/l/@oclif/plugin-update.svg)](https://github.com/oclif/plugin-update/blob/main/package.json)
 
@@ -20,7 +18,10 @@ See https://oclif.io/docs/releasing.html#autoupdater
 
 <!-- commands -->
 
-- [`oclif-example update [CHANNEL]`](#oclif-example-update-channel)
+- [@oclif/plugin-update](#oclifplugin-update)
+- [Usage](#usage)
+- [Commands](#commands)
+  - [`oclif-example update [CHANNEL]`](#oclif-example-update-channel)
 
 ## `oclif-example update [CHANNEL]`