chore: add citation file (#3010)

diff --git a/CITATION.cff b/CITATION.cff
new file mode 100644 (file)
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+++ b/CITATION.cff
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+# This CITATION.cff file was generated with cffinit.
+# Visit https://bit.ly/cffinit to generate yours today!
+
+cff-version: 1.2.0
+title: Starlette
+message: >-
+  If you use this software, please cite it using the
+  metadata from this file.
+type: software
+authors:
+  - given-names: Marcelo
+    family-names: Trylesinski
+    email: marcelotryle@gmail.com
+  - given-names: Tom
+    family-names: Christie
+    email: tom@tomchristie.com
+repository-code: "https://github.com/Kludex/starlette"
+url: "https://www.starlette.io/"
+abstract: Starlette is an ASGI web framework for Python.
+keywords:
+  - asgi
+  - starlette
+license: BSD-3-Clause