fix typos

Found via `typos --hidden --format brief`

Author: kianmeng

_examples/decoratorsOnTop/main.go

@@ -15,7 +15,7 @@ func main() {
 	total := 100
 	bar := p.New(int64(total),
 		mpb.NopStyle(), // make main bar style nop, so there are just decorators
-		mpb.BarExtender(extended(mpb.BarStyle().Build()), false), // extend wtih normal bar on the next line
+		mpb.BarExtender(extended(mpb.BarStyle().Build()), false), // extend with normal bar on the next line
 		mpb.PrependDecorators(
 			decor.Name("Percentage: "),
 			decor.NewPercentage("%d"),

bar.go

@@ -117,7 +117,7 @@ func (b *Bar) ProxyWriter(w io.Writer) io.WriteCloser {
 	}
 }
 
-// ID returs id of the bar.
+// ID returns id of the bar.
 func (b *Bar) ID() int {
 	result := make(chan int)
 	select {
@@ -180,7 +180,7 @@ func (b *Bar) TraverseDecorators(cb func(decor.Decorator)) {
 }
 
 // EnableTriggerComplete enables triggering complete event. It's effective
-// only for bars which were constructed with `total <= 0`. If `curren >= total`
+// only for bars which were constructed with `total <= 0`. If `current >= total`
 // at the moment of call, complete event is triggered right away.
 func (b *Bar) EnableTriggerComplete() {
 	select {
@@ -493,7 +493,7 @@ func (b *Bar) wSyncTable() syncTable {
 func (s *bState) draw(stat decor.Statistics) (_ io.Reader, err error) {
 	decorFiller := func(buf *bytes.Buffer, decorators []decor.Decorator) (err error) {
 		for _, d := range decorators {
-			// need to call Decor in any case becase of width synchronization
+			// need to call Decor in any case because of width synchronization
 			str, width := d.Decor(stat)
 			if err != nil {
 				continue

decor/eta.go

@@ -15,7 +15,7 @@ var (
 	_ AverageDecorator = (*averageETA)(nil)
 )
 
-// TimeNormalizer interface. Implementors could be passed into
+// TimeNormalizer interface. Implementers could be passed into
 // MovingAverageETA, in order to affect i.e. normalize its output.
 type TimeNormalizer interface {
 	Normalize(time.Duration) time.Duration

progress.go

@@ -39,7 +39,7 @@ type pState struct {
 	idCount     int
 	popPriority int
 
-	// following are provided/overrided by user
+	// following are provided/overrode by user
 	hmQueueLen       int
 	reqWidth         int
 	refreshRate      time.Duration