Update metrics-supported.md

i guess it should be called 'Total number of Bytes In' not 'Total number of Bytes Out'

Author: dimilider

articles/azure-monitor/essentials/metrics-supported.md

@@ -2712,7 +2712,7 @@ This latest update adds a new column and reorders the metrics to be alphabetical
 
 |Metric|Exportable via Diagnostic Settings?|Metric Display Name|Unit|Aggregation Type|Description|Dimensions|
 |---|---|---|---|---|---|---|
-|PEBytesIn|Yes|Bytes In|Count|Total|Total number of Bytes Out|No Dimensions|
+|PEBytesIn|Yes|Bytes In|Count|Total|Total number of Bytes In |No Dimensions|
 |PEBytesOut|Yes|Bytes Out|Count|Total|Total number of Bytes Out|No Dimensions|