Set up All Contributors

Author: clementbiron

.all-contributors.md

@@ -0,0 +1,7 @@
+This file is required by [All Contributors](https://allcontributors.org/) to work properly and must not be deleted. Although it is automatically updated with the list of contributors, the actual output used in production is in JSON format and located in the `.all-contributorsrc` file.
+
+<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
+<!-- prettier-ignore-start -->
+<!-- markdownlint-disable -->
+<!-- prettier-ignore-end -->
+<!-- ALL-CONTRIBUTORS-LIST:END -->

.all-contributorsrc

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+{
+  "projectName": "dating-declarations",
+  "projectOwner": "OpenTermsArchive",
+  "files": [
+    ".all-contributors.md"
+  ],
+  "contributors": [],
+  "repoType": "github",
+  "commitConvention": "none",
+  "contributorsPerLine": 7
+}