chore: fix some comments

docs/sources/reference/functions.md

@@ -423,7 +423,7 @@ replaceAlias(/(.*): CPU (.*) time/, $1 - $2) -> backend01 - system
 consolidateBy(consolidationFunc)
 ```
 
-When a graph is drawn where width of the graph size in pixels is smaller than the number of datapoints to be graphed, plugin consolidates the values to to prevent line overlap. The consolidateBy() function changes the consolidation function from the default of average to one of `sum`, `min`, `max` or `count`.
+When a graph is drawn where width of the graph size in pixels is smaller than the number of datapoints to be graphed, plugin consolidates the values to prevent line overlap. The consolidateBy() function changes the consolidation function from the default of average to one of `sum`, `min`, `max` or `count`.
 
 Valid function names are `sum`, `avg`, `min`, `max` and `count`.
 

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,