docs: improve examples, remove docs superseded by typespec docstrings (#279)

* chore(bling): uncomment example options

* refactor(brew): remove duplicate "configuration options" setting in README, improve TSP docs

* fix(chezmoi): make example an example and not a doc of the configuration options

* chore(rpm-ostree): remove fake example

examples should be runnable

* fix(rpm-ostree): add replacing packages to typespec schema

* fix(rpm-ostree): actually install the packages the repos are added for

* feat(rpm-ostree): showcase installing from URL and using optfix in example

* fix(rpm-ostree): add optfix to typespec

* fix(systemd): real-world example instead of configuration docs duplicate

modules/bling/module.yml

@@ -5,9 +5,9 @@ typespec: https://raw.githubusercontent.com/blue-build/modules/main/modules/blin
 example: |
   type: bling
   install:
-      # - ublue-update # https://github.com/ublue-os/ublue-update
-      # - 1password # install 1Password (stable) and `op` CLI tool
-      # - dconf-update-service # a service unit that updates the dconf db on boot
-      # - gnome-vrr # enables gnome-vrr for your image
-      # - laptop # installs TLP and configures your system for laptop usage
-      # - flatpaksync # allows synchronization of user-installed flatpaks, see separate documentation section
+      - ublue-update # https://github.com/ublue-os/ublue-update
+      - 1password # install 1Password (stable) and `op` CLI tool
+      - dconf-update-service # a service unit that updates the dconf db on boot
+      - gnome-vrr # enables gnome-vrr for your image
+      - laptop # installs TLP and configures your system for laptop usage
+      - flatpaksync # allows synchronization of user-installed flatpaks, see separate documentation section