[#1320] English Check

Signed-off-by: Elizaveta Chichindaeva <elizaveta@nspcc.ru>

pkg/util/http/calls.go

@@ -6,13 +6,13 @@ import (
 	"net/http"
 )
 
-// Serve listens and serves internal HTTP server.
+// Serve listens and serves the internal HTTP server.
 //
-// Returns any error returned by internal server
+// Returns any error returned by the internal server
 // except http.ErrServerClosed.
 //
 // After Shutdown call, Serve has no effect and
-// returned error is always nil.
+// the returned error is always nil.
 func (x *Server) Serve() error {
 	err := x.srv.ListenAndServe()
 
@@ -25,10 +25,10 @@ func (x *Server) Serve() error {
 	return err
 }
 
-// Shutdown gracefully shuts down internal HTTP server.
+// Shutdown gracefully shuts down the internal HTTP server.
 //
-// Shutdown is called with context which expires after
-// configured timeout.
+// Shutdown is called with the context which expires after
+// the configured timeout.
 //
 // Once Shutdown has been called on a server, it may not be reused;
 // future calls to Serve method will have no effect.

pkg/util/http/opts.go

@@ -17,7 +17,7 @@ func defaultCfg() *cfg {
 	}
 }
 
-// WithShutdownTimeout returns option to set shutdown timeout
+// WithShutdownTimeout returns an option to set shutdown timeout
 // of the internal HTTP server.
 func WithShutdownTimeout(dur time.Duration) Option {
 	return func(c *cfg) {

pkg/util/http/server.go

@@ -22,7 +22,7 @@ type Prm struct {
 }
 
 // Server represents a wrapper over http.Server
-// that provides interface to start and stop
+// that provides an interface to start and stop
 // listening routine.
 //
 // For correct operation, Server must be created