Stop installing docs/ as part of package code

Fixes #1248

NEWS

@@ -1,5 +1,7 @@
 0.21.8	UNRELEASED
 
+ * Stop installing docs/ as part of package code. (Jelmer Vernooij, #1248)
+
  * Move tests to root. (Jelmer Vernooij, #1024)
 
  * Convert the optional C implementations to Rust.

setup.py

@@ -63,7 +63,7 @@ if "--pure" in sys.argv:
 
 
 setup(
-    package_data={"": ["../docs/tutorial/*.txt", "py.typed"]},
+    package_data={"": ["py.typed"]},
     rust_extensions=rust_extensions,
     tests_require=tests_require,
 )