fix some typo

request.go

@@ -589,17 +589,17 @@ func (r *Request) TraceInfo() TraceInfo {
 		ti.TotalTime = ct.endTime.Sub(ct.dnsStart)
 	}
 
-	// Only calcuate on successful connections
+	// Only calculate on successful connections
 	if !ct.connectDone.IsZero() {
 		ti.TCPConnTime = ct.connectDone.Sub(ct.dnsDone)
 	}
 
-	// Only calcuate on successful connections
+	// Only calculate on successful connections
 	if !ct.gotConn.IsZero() {
 		ti.ConnTime = ct.gotConn.Sub(ct.getConn)
 	}
 
-	// Only calcuate on successful connections
+	// Only calculate on successful connections
 	if !ct.gotFirstResponseByte.IsZero() {
 		ti.ResponseTime = ct.endTime.Sub(ct.gotFirstResponseByte)
 	}

response.go

@@ -99,7 +99,7 @@ func (r *Response) String() string {
 
 // Time method returns the time of HTTP response time that from request we sent and received a request.
 //
-// See `Response.ReceivedAt` to know when client recevied response and see `Response.Request.Time` to know
+// See `Response.ReceivedAt` to know when client received response and see `Response.Request.Time` to know
 // when client sent a request.
 func (r *Response) Time() time.Duration {
 	if r.Request.clientTrace != nil {
@@ -108,7 +108,7 @@ func (r *Response) Time() time.Duration {
 	return r.receivedAt.Sub(r.Request.Time)
 }
 
-// ReceivedAt method returns when response got recevied from server for the request.
+// ReceivedAt method returns when response got received from server for the request.
 func (r *Response) ReceivedAt() time.Time {
 	return r.receivedAt
 }