README.md: fixing broken links (nicksnyder#251)

* README.md: fixing broken links

* Apply suggestions from code review

Co-authored-by: Nick Snyder <[email protected]>

README.md

@@ -2,12 +2,13 @@
 
 go-i18n is a Go [package](#package-i18n) and a [command](#command-goi18n) that helps you translate Go programs into multiple languages.
 
-- Supports [pluralized strings](http://cldr.unicode.org/index/cldr-spec/plural-rules) for all 200+ languages in the [Unicode Common Locale Data Repository (CLDR)](http://www.unicode.org/cldr/charts/28/supplemental/language_plural_rules.html).
-  - Code and tests are [automatically generated](https://github.com/nicksnyder/go-i18n/tree/master/i18n/language/codegen) from [CLDR data](http://cldr.unicode.org/index/downloads).
+- Supports [pluralized strings](http://cldr.unicode.org/index/cldr-spec/plural-rules) for all 200+ languages in the [Unicode Common Locale Data Repository (CLDR)](https://www.unicode.org/cldr/charts/28/supplemental/language_plural_rules.html).
+  - Code and tests are [automatically generated](https://github.com/nicksnyder/go-i18n/tree/main/v2/internal/plural/codegen) from [CLDR data](http://cldr.unicode.org/index/downloads).
 - Supports strings with named variables using [text/template](http://golang.org/pkg/text/template/) syntax.
 - Supports message files of any format (e.g. JSON, TOML, YAML).
 
-## Package i18n [![GoDoc](http://godoc.org/github.com/nicksnyder/go-i18n?status.svg)](http://godoc.org/github.com/nicksnyder/go-i18n/v2/i18n)
+## Package i18n
+[![GoDoc](https://godoc.org/github.com/nicksnyder/go-i18n?status.svg)](https://godoc.org/github.com/nicksnyder/go-i18n/v2/i18n)
 
 The i18n package provides support for looking up messages according to a set of locale preferences.
 
@@ -55,7 +56,8 @@ localizer.Localize(&i18n.LocalizeConfig{
 }) // Nick has 2 cats.
 ```
 
-## Command goi18n [![GoDoc](http://godoc.org/github.com/nicksnyder/go-i18n?status.svg)](http://godoc.org/github.com/nicksnyder/go-i18n/v2/goi18n)
+## Command goi18n
+[![GoDoc](https://godoc.org/github.com/nicksnyder/go-i18n?status.svg)](https://godoc.org/github.com/nicksnyder/go-i18n/v2/goi18n)
 
 The goi18n command manages message files used by the i18n package.
 
@@ -115,9 +117,9 @@ If you have added new messages to your program:
 
 ## For more information and examples:
 
-- Read the [documentation](http://godoc.org/github.com/nicksnyder/go-i18n/v2).
-- Look at the [code examples](https://github.com/nicksnyder/go-i18n/blob/master/v2/i18n/example_test.go) and [tests](https://github.com/nicksnyder/go-i18n/blob/master/v2/i18n/localizer_test.go).
-- Look at an example [application](https://github.com/nicksnyder/go-i18n/tree/master/v2/example).
+- Read the [documentation](https://godoc.org/github.com/nicksnyder/go-i18n/v2).
+- Look at the [code examples](https://github.com/nicksnyder/go-i18n/blob/main/v2/i18n/example_test.go) and [tests](https://github.com/nicksnyder/go-i18n/blob/main/v2/i18n/localizer_test.go).
+- Look at an example [application](https://github.com/nicksnyder/go-i18n/tree/main/v2/example).
 
 ## License
 

v2/internal/plural/codegen/README.md

@@ -1,6 +1,6 @@
 # How to upgrade CLDR data
 
 1.  Go to http://cldr.unicode.org/index/downloads to find the latest version.
-1.  Download the latest version of cldr-common (e.g. http://unicode.org/Public/cldr/37/cldr-common-37.0.zip)
+1.  Download the latest version of cldr-common (e.g. https://unicode.org/Public/cldr/39/cldr-common-39.0.zip)
 1.  Unzip and copy `common/supplemental/plurals.xml` to this directory.
 1.  Run `generate.sh`.