Made a start on updating dead links and CI (#122)

* Add CC0 1.0 Universal License

Added the Creative Commons CC0 1.0 Universal license to the project, identical to fork master

* minor cleanup, new CI

* actions update

* add updates2mqtt and link check

* lint fixes

* More link fixes

* link fixes

* awesome-lint fixes

* remove another awesome lint disablement

* link fixes

* Fix formatting in README.md header spacing

* Add RobustMQ to MQTT broker list in README

* new links

* lint fix

.pre-commit-config.yaml

@@ -0,0 +1,26 @@
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v6.0.0
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+  - repo: https://github.com/codespell-project/codespell
+    rev: v2.4.1
+    hooks:
+      - id: codespell
+        args:
+          - --ignore-words-list=hass
+          - --skip="./.*,*.csv,*.json"
+          - --quiet-level=2
+        exclude_types: [csv, json]
+  - repo: https://github.com/pengqun/pre-commit-hooks
+    rev: v1.1.0
+    hooks:
+      - id: awesome-lint
+  - repo: https://github.com/lycheeverse/lychee.git
+    rev: v0.15.1
+    hooks:
+      - id: lychee
+        # Optionally include additional CLI arguments
+        args: ["--no-progress", "--max-cache-age","7d","--exclude", "file://LICENSE"]
+        stages: [manual]