chore: fix some comments (#1818)

Signed-off-by: TechVest <techdashen@qq.com>

pkg/timeseries/moving_average.go

@@ -73,7 +73,7 @@ func (ts TimeSeries) ExponentialMovingAverage(an float64) TimeSeries {
 	an = math.Min(float64(ts.Len()), an)
 
 	// alpha coefficient should be between 0 and 1. If provided n <= 1, then use it as alpha directly. Otherwise, it's a
-	// number of points in the window and alpha calculted from this information.
+	// number of points in the window and alpha calculated from this information.
 	var a float64
 	var n int
 	ema := []TimePoint{ts[0]}

pkg/zabbixapi/zabbix_api.go

@@ -137,7 +137,7 @@ func (api *ZabbixAPI) Login(ctx context.Context, username string, password strin
 	return auth.MustString(), nil
 }
 
-// Login methid for Zabbix prior to 5.4
+// Login method for Zabbix prior to 5.4
 func (api *ZabbixAPI) LoginDeprecated(ctx context.Context, username string, password string) (string, error) {
 	params := ZabbixAPIParams{
 		"user":     username,