Merge branch '5.0' into 5.1

* 5.0:
  Removed ClassLoader component docs
  Removed ErrorHandler component docs
  Removed Templating component docs
  Removed WebLink component docs
  Removed Polyfill component docs
  Removed Mercure component docs
  Removed DotEnv component docs

Author: wouterj

_build/redirection_map

@@ -13,7 +13,7 @@
 /cookbook/email /email
 /cookbook/gmail /cookbook/email/gmail
 /cookbook/console /components/console
-/cookbook/tools/autoloader /components/class_loader
+/cookbook/tools/autoloader https://github.com/symfony/class-loader
 /cookbook/tools/finder /components/finder
 /cookbook/service_container/parentservices /service_container/parent_services
 /cookbook/service_container/factories /service_container/factories
@@ -295,15 +295,15 @@
 /components/asset/introduction /components/asset
 /components/browser_kit/index /components/browser_kit
 /components/browser_kit/introduction /components/browser_kit
-/components/class_loader/introduction /components/class_loader
-/components/class_loader/index /components/class_loader
-/components/class_loader/cache_class_loader /components/class_loader
-/components/class_loader/class_loader /components/class_loader
-/components/class_loader/class_map_generator /components/class_loader
-/components/class_loader/debug_class_loader /components/class_loader
-/components/class_loader/map_class_loader /components/class_loader
-/components/class_loader/map_class_loader /components/class_loader
-/components/class_loader/psr4_class_loader /components/class_loader
+/components/class_loader/introduction https://github.com/symfony/class-loader
+/components/class_loader/index https://github.com/symfony/class-loader
+/components/class_loader/cache_class_loader https://github.com/symfony/class-loader
+/components/class_loader/class_loader https://github.com/symfony/class-loader
+/components/class_loader/class_map_generator https://github.com/symfony/class-loader
+/components/class_loader/debug_class_loader https://github.com/symfony/class-loader
+/components/class_loader/map_class_loader https://github.com/symfony/class-loader
+/components/class_loader/map_class_loader https://github.com/symfony/class-loader
+/components/class_loader/psr4_class_loader https://github.com/symfony/class-loader
 /components/config/introduction /components/config
 /components/config/index /components/config
 /components/console/helpers/tablehelper /components/console/helpers/table
@@ -350,10 +350,10 @@
 /components/routing/hostname_pattern /routing/hostname_pattern
 /components/security/introduction /components/security
 /components/security/index /components/security
-/components/templating/introduction /components/templating
-/components/templating/index /components/templating
-/components/templating/helpers/assetshelper /components/templating/assetshelper
-/components/templating/helpers/slotshelper /components/templating/slotshelper
+/components/templating/introduction https://github.com/symfony/templating
+/components/templating/index https://github.com/symfony/templating
+/components/templating/helpers/assetshelper https://github.com/symfony/templating
+/components/templating/helpers/slotshelper https://github.com/symfony/templating
 /components/translation/introduction /components/translation
 /components/translation/index /components/translation
 /components/var_dumper/introduction /components/var_dumper
@@ -399,7 +399,7 @@
 /security/acl_advanced /security/acl
 /security/password_encoding /security
 /weblink /web_link
-/components/weblink /components/web_link
+/components/weblink https://github.com/symfony/web-link
 /frontend/encore/installation-no-flex /frontend/encore/installation
 /http_cache/form_csrf_caching /security/csrf
 /console/logging /console
@@ -483,3 +483,25 @@
 /components/routing https://github.com/symfony/routing
 /doctrine/pdo_session_storage /session/database
 /doctrine/mongodb_session_storage /session/database
+/components/dotenv https://github.com/symfony/dotenv
+/components/mercure https://github.com/symfony/mercure
+/components/polyfill_apcu https://github.com/symfony/polyfill-apcu
+/components/polyfill_ctype https://github.com/symfony/polyfill-ctype
+/components/polyfill_iconv https://github.com/symfony/polyfill-iconv
+/components/polyfill_intl_grapheme https://github.com/symfony/polyfill_intl-grapheme
+/components/polyfill_intl_icu https://github.com/symfony/polyfill_intl-icu
+/components/polyfill_intl_idn https://github.com/symfony/polyfill_intl-idn
+/components/polyfill_intl_normalizer https://github.com/symfony/polyfill_intl-normalizer
+/components/polyfill_mbstring https://github.com/symfony/polyfill-mbstring
+/components/polyfill_php54 https://github.com/symfony/polyfill-php54
+/components/polyfill_php55 https://github.com/symfony/polyfill-php55
+/components/polyfill_php56 https://github.com/symfony/polyfill-php56
+/components/polyfill_php70 https://github.com/symfony/polyfill-php70
+/components/polyfill_php71 https://github.com/symfony/polyfill-php71
+/components/polyfill_php72 https://github.com/symfony/polyfill-php72
+/components/polyfill_php73 https://github.com/symfony/polyfill-php73
+/components/polyfill_uuid https://github.com/symfony/polyfill-uuid
+/components/web_link https://github.com/symfony/web-link
+/components/templating https://github.com/symfony/templating
+/components/error_handler https://github.com/symfony/error-handler
+/components/class_loader https://github.com/symfony/class-loader

components/asset.rst

@@ -417,6 +417,6 @@ Learn more
 ----------
 
 * :doc:`How to manage CSS and JavaScript assets in Symfony applications </frontend>`
-* :doc:`WebLink component </components/web_link>` to preload assets using HTTP/2.
+* :doc:`WebLink component </web_link>` to preload assets using HTTP/2.
 
 .. _`Webpack`: https://webpack.js.org/