readme: Add info about how to upgrade Bootstrap

gohugoio · Jan 12, 2022 · 5afcb5a · 5afcb5a
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diff --git a/README.md b/README.md
@@ -76,4 +76,13 @@ Or only what you need:
 
 This repository will be versioned following https://github.com/bep/semverpair
 
+## How to Upgrade Bootstrap
+
+1. Checkout the relevant branch (`main`=latest=Bootstrap 5, `v4`=Bootstrap 4)
+1. Create a PR branch
+1. Run `hugo mod get -u github.com/twbs/bootstrap`
+1. Verify that `go.mod` is updated with correct version (run `hugo mod graph`).
+1. Do `cd exampleSite` and run `hugo server` and make sure it works (and that `github.com/twbs/bootstrap` version is as expected in the table).
+1. Create a Pull Request and verify that it builds and that the Netlify preview works.
+