Update docs

Author: AlekSi

README.md

@@ -1,14 +1,15 @@
 # pointer
-[![GoDoc](https://godoc.org/github.com/AlekSi/pointer?status.svg)](https://godoc.org/github.com/AlekSi/pointer)
-[![Build Status](https://travis-ci.org/AlekSi/pointer.svg)](https://travis-ci.org/AlekSi/pointer)
 
-Go package pointer provides helpers to get pointers to values of built-in types.
+[![Go Reference](https://pkg.go.dev/badge/github.com/AlekSi/pointer.svg)](https://pkg.go.dev/github.com/AlekSi/pointer)
+
+Go package `pointer` provides helpers to convert between pointers and values of built-in
+(and, with Go 1.18+ generics, of any) types.
 
 ```
 go get github.com/AlekSi/pointer
 ```
 
-API is stable. [Documentation](http://godoc.org/github.com/AlekSi/pointer).
+API is stable. [Documentation](https://pkg.go.dev/github.com/AlekSi/pointer).
 
 ```go
 package motivationalexample

generic.go

@@ -3,10 +3,14 @@
 
 package pointer
 
+// To returns a pointer to the passed value.
 func To[T any](t T) *T {
 	return &t
 }
 
+// ToOrNil returns a pointer to the passed value, or nil, if the passed value is a zero value.
+// If the passed value has `IsZero() bool` method (for example, time.Time instance),
+// it is used to determine if the value is zero.
 func ToOrNil[T comparable](t T) *T {
 	if z, ok := any(t).(interface{ IsZero() bool }); ok {
 		if z.IsZero() {
@@ -22,6 +26,7 @@ func ToOrNil[T comparable](t T) *T {
 	return &t
 }
 
+// Get returns the value from the passed pointer or the zero value if the pointer is nil.
 func Get[T any](t *T) T {
 	if t == nil {
 		var zero T

pointer.go

@@ -1,4 +1,4 @@
-// Package pointer provides helpers to get pointers to values of built-in types.
+// Package pointer provides helpers to convert between pointers and values of built-in (and, with generics, of any) types.
 package pointer // import "github.com/AlekSi/pointer"
 
 import (