View by CPU is only showing 6 of 12 cores #1640 (only update docs)

docs/aoa/cpu.rst

@@ -60,6 +60,10 @@ To switch to per-CPU stats, just hit the ``1`` key:
 
 .. image:: ../_static/per-cpu.png
 
+In this case, Glances will show on line per logical CPU on the system.
+Logical cores means the number of physical cores multiplied by the number
+of threads that can run on each core (this is known as Hyper Threading).
+
 By default, ``steal`` CPU time alerts aren't logged. If you want that,
 just add to the configuration file:
 

docs/man/glances.1

 .\" Man page generated from reStructuredText.
 .
-.TH "GLANCES" "1" "Mar 23, 2020" "3.1.5_DEVELOP" "Glances"
+.TH "GLANCES" "1" "Apr 26, 2020" "3.1.5_DEVELOP" "Glances"
 .SH NAME
 glances \- An eye on your system
 .