RTD failing

[martinfleis]

https://readthedocs.org/projects/momepy/builds/22104213/

[jGaboardi]

Traceback

``` Read the Docs build information Build id: 22104213 Project: momepy Version: 512 Commit: c6aed26a871eb27b50ab630039849752f5352126 Date: 2023-10-03T08:25:11.522817Z State: finished Success: False [rtd-command-info] start-time: 2023-10-03T08:25:17.893448Z, end-time: 2023-10-03T08:25:20.696985Z, duration: 2, exit-code: 0 git clone --depth 1 https://github.com/pysal/momepy.git . Cloning into '.'... [rtd-command-info] start-time: 2023-10-03T08:25:21.324654Z, end-time: 2023-10-03T08:25:22.218877Z, duration: 0, exit-code: 0 git fetch origin --force --prune --prune-tags --depth 50 pull/512/head:external-512 From https://github.com/pysal/momepy * [new ref] refs/pull/512/head -> external-512 * [new tag] v0.6.0 -> v0.6.0 [rtd-command-info] start-time: 2023-10-03T08:25:22.871198Z, end-time: 2023-10-03T08:25:23.179692Z, duration: 0, exit-code: 0 git checkout --force c6aed26a871eb27b50ab630039849752f5352126 Note: switching to 'c6aed26a871eb27b50ab630039849752f5352126'. You are in 'detached HEAD' state. You can look around, make experimental changes and commit them, and you can discard any commits you make in this state without impacting any branches by switching back to a branch. If you want to create a new branch to retain commits you create, you may do so (now or later) by using -c with the switch command. Example: git switch -c Or undo this operation with: git switch - Turn off this advice by setting config variable advice.detachedHead to false HEAD is now at c6aed26 [pre-commit.ci] pre-commit autoupdate [rtd-command-info] start-time: 2023-10-03T08:25:23.671172Z, end-time: 2023-10-03T08:25:23.731047Z, duration: 0, exit-code: 0 git clean -d -f -f ```

[jGaboardi]

The configuration key "build.os" is required to build your documentation.
Read more at https://docs.readthedocs.io/en/stable/config-file/v2.html#build-os