Only build on master; add license, readme

Author: fredsted

.github/workflows/main.yml

@@ -1,5 +1,8 @@
 name: build mkdocs
-on: [push]
+on:
+  push:
+    branches:
+      - master
 jobs:
   build-mkdocs:
     runs-on: ubuntu-latest
@@ -9,4 +12,5 @@ jobs:
       - name: Deploy MkDocs
         uses: mhausenblas/[email protected]
         env:
-            REQUIREMENTS: requirements.txt
+            REQUIREMENTS: requirements.txt
+            CUSTOM_DOMAIN: docs.webhook.site

LICENSE

@@ -0,0 +1,21 @@
+Webhook.site Docs is licensed under the MIT License.
+
+Copyright (c) 2024 Webhook ApS
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -0,0 +1 @@
+Docs are available at https://docs.webhook.site.