Update LoggingEventSource.xml (dotnet#6602)

Author: ssashir06

xml/Microsoft.Extensions.Logging.EventSource/LoggingEventSource.xml

@@ -45,7 +45,7 @@ SPEC =                          // empty spec, same as *
      | NAME : LEVEL            // specifies level for a particular logger (can have a * suffix).
 ```
             
-Where Name is the name of a ILoggger (case matters), Name can have a \* which acts as a wildcard
+Where Name is the name of a ILogger (case matters), Name can have a \* which acts as a wildcard
 AS A SUFFIX. Thus, Net\* will match any loggers that start with the 'Net'.
             
 The LEVEL is a number or a LogLevel string. 0=Trace, 1=Debug, 2=Information, 3=Warning,  4=Error, Critical=5