Fixed computing number of physical packages for non continous physical package IDs (e.g. on Ampere Altra Q80-30)

collectors/cpufreqMetric.md

@@ -1,4 +1,5 @@
 ## `cpufreq_cpuinfo` collector
+
 ```json
   "cpufreq": {
     "exclude_metrics": []
@@ -8,4 +9,5 @@
 The `cpufreq` collector reads the clock frequency from `/sys/devices/system/cpu/cpu*/cpufreq` and outputs a handful **hwthread** metrics.
 
 Metrics:
-* `cpufreq`
+
+* `cpufreq`