add github actions to build instructions

README.md

@@ -3,7 +3,7 @@
 
 Scripts, recipes, and docs for conda packages. Inspired by [jdblischak/jdb-conda](https://github.com/jdblischak/jdb-conda).
 
-To build a local version of a package in this repository:
+## Build a package in this repository locally
 
 1. Clone this repository
     ```
@@ -42,4 +42,8 @@ To build a local version of a package in this repository:
     conda activate PACKAGE
     ```
 
-For maximum reproducibility, consider doing these steps within [a GitHub codespace](https://codespaces.new/aryarm/aryarm-conda). This will also allow you to skip steps 1-3.
+## Build a package in this repository in GitHub Codespaces
+For your convenince, you may consider doing the steps above within [a GitHub codespace](https://codespaces.new/aryarm/aryarm-conda). This will also allow you to skip steps 1-3. You can then [download the built package](https://github.com/orgs/community/discussions/62388#discussioncomment-7281243) (located at `${CONDA_PREFIX}/conda-bld/`) from the codespace through the VSCode GUI.
+
+## Build a package in this repository in GitHub Actions (recommended)
+Alternatively, you can skip steps 1-5 by simply forking this repository. This is probably the easiest method because it uses GitHub Actions to do all the work. Any commits to the `main` branch or to a pull request will trigger a bot to automatically rebuild packages from changed recipes and publish the built packages as [Github Artifacts](https://docs.github.com/en/actions/managing-workflow-runs/downloading-workflow-artifacts). You can then download an artifact, unzip it, and proceed with the resulting directory of files in place of the `${CONDA_PREFIX}/conda-bld/` path in step 6.