[thread] Rename to 'Concurrency support library'

jensmaurer · tkoeppe · commit aa2c64589cf2 · 2022-02-24T14:34:29.000Z
Missed update with commit d74c217.
diff --git a/source/threads.tex b/source/threads.tex
@@ -1,5 +1,5 @@
 %!TEX root = std.tex
-\rSec0[thread]{Thread support library}
+\rSec0[thread]{Concurrency support library}
 
 \rSec1[thread.general]{General}
 
