[bit.count] Add missing paragraph number

jensmaurer · tkoeppe · commit 1744e9eb4412 · 2021-07-18T20:25:30.000Z
diff --git a/source/numerics.tex b/source/numerics.tex
@@ -1511,6 +1511,7 @@
 
 \rSec2[bit.count]{Counting}
 
+\pnum
 In the following descriptions,
 let \tcode{N} denote \tcode{numeric_limits<T>::digits}.
 
