Docs: Update manpage and config

config/config.conf

@@ -142,6 +142,7 @@ speed_type="bios_limit"
 # Default: 'off'
 # Values: 'on', 'off'.
 # Flag:    --speed_shorthand.
+# NOTE: This flag is not supported in systems with CPU speed less than 1 GHz
 #
 # Example:
 # on:    'i7-6500U (4) @ 3.1GHz'

neofetch

@@ -3951,6 +3951,9 @@ INFO:
                                 NOTE: This only supports Linux with cpufreq.
 
     --speed_shorthand on/off    Whether or not to show decimals in CPU speed.
+
+                                NOTE: This flag is not supported in systems with CPU speed less than 1 GHz.
+
     --cpu_shorthand type        Shorten the output of CPU
                                 Possible values: name, speed, tiny, on, off
     --cpu_cores type            Whether or not to display the number of CPU cores

neofetch.1

@@ -32,6 +32,8 @@ NOTE: This only supports Linux with cpufreq.
 .TP
 \fB\-\-speed_shorthand\fR on/off
 Whether or not to show decimals in CPU speed.
+.IP
+NOTE: This flag is not supported in systems with CPU speed less than 1 GHz.
 .TP
 \fB\-\-cpu_shorthand\fR type
 Shorten the output of CPU