doc: remove duplicated link (pyscript#1386)

sfermigier · web-flow · commit 5a92ef3c113b · 2023-04-13T11:00:28.000+05:30
"How to write content to the page" appeared twice in the index.
diff --git a/docs/tutorials/index.md b/docs/tutorials/index.md
@@ -35,5 +35,4 @@ glob:
 ---
 py-config-fetch
 py-config-interpreter
-writing-to-page
 ```
