fix broken markdown local links in next/guidelines.md

Ran `make gen_top_html` to perform the above.

next/rules.md

@@ -13,9 +13,9 @@ Please regard these rules as a historic archive.
 # The IOCCC is closed
 
 The IOCCC is **NOT** accepting new submissions at this time.  See the
-[IOCCC winning entries page](years.html) for the entires that have won the IOCCC.
+[IOCCC winning entries page](../years.html) for the entires that have won the IOCCC.
 
-Watch both [the IOCCC status page](status.html) and the
+Watch both [the IOCCC status page](../status.html) and the
 [@IOCCC mastodon feed](https://fosstodon.org/@ioccc) for information about future IOCCC openings.
 
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