Merge branch '8-built-in-authentication-backends-reference' into 'master'

Built-in authentication backends reference

Closes #8

See merge request tnir/docs.djangoproject.jp!8

Author: tnir

redirect.go

@@ -22,6 +22,7 @@ func migrateUrl(s string) string {
 		`internals/committers/`:       "internals/organization/#prerogatives",
 		`internals/documentation/`:    "internals/contributing/writing-documentation/",
 		`obsolete/.*`:                 "internals/deprecation/",
+		`ref/authbackends/`:           "topics/auth/customizing/#authentication-backends",
 		`ref/contrib/comments/.*`:     "releases/1.8/#features-removed-in-1-8",
 		`ref/contrib/csrf/`:           "ref/csrf/",
 		`ref/contrib/databrowse/`:     "releases/1.4/#django-contrib-databrowse",

redirect_test.go

@@ -31,6 +31,7 @@ func TestMapUrlMigration(t *testing.T) {
 		"/en/latest/internals/documentation.html":            "https://docs.djangoproject.com/ja/2.0/internals/contributing/writing-documentation/",
 		"/en/latest/obsolete/":                               "https://docs.djangoproject.com/ja/2.0/internals/deprecation/",
 		"/en/latest/obsolete/admin-css.html":                 "https://docs.djangoproject.com/ja/2.0/internals/deprecation/",
+		"/en/latest/ref/authbackends.html":                   "https://docs.djangoproject.com/ja/2.0/topics/auth/customizing/#authentication-backends",
 		"/en/latest/ref/contrib/comments/":                   "https://docs.djangoproject.com/ja/2.0/releases/1.8/#features-removed-in-1-8",
 		"/en/latest/ref/contrib/comments/custom.html":        "https://docs.djangoproject.com/ja/2.0/releases/1.8/#features-removed-in-1-8",
 		"/en/latest/ref/contrib/csrf.html":                   "https://docs.djangoproject.com/ja/2.0/ref/csrf/",