doc: add missing deprecation number

bcoe · joesepi · commit c6c9350998be · 2020-10-22T18:40:51.000-04:00
PR-URL: nodejs#35630 Reviewed-By: Richard Lau <rlau@redhat.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
diff --git a/doc/api/deprecations.md b/doc/api/deprecations.md
@@ -2660,7 +2660,7 @@ Type: Documentation-only
 The [`crypto.Certificate()` constructor][] is deprecated. Use
 [static methods of `crypto.Certificate()`][] instead.
 
-### DEP0XXX: `fs.rmdir(path, { recursive: true })`
+### DEP0147: `fs.rmdir(path, { recursive: true })`
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   - version: REPLACEME
