diff --git a/LICENSE.md b/LICENSE.md
index bc5674f..6a920d6 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,17 +1,17 @@
-Copyright © 2008 by Yii Software (https://www.yiiframework.com/)
+Copyright © 2008 by Yii Software (<https://www.yiiframework.com/>)
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
 are met:
 
- * Redistributions of source code must retain the above copyright
+* Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright
+* Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in
    the documentation and/or other materials provided with the
    distribution.
- * Neither the name of Yii Software nor the names of its
+* Neither the name of Yii Software nor the names of its
    contributors may be used to endorse or promote products derived
    from this software without specific prior written permission.
 
diff --git a/README.md b/README.md
index 27deffb..dbf69b2 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
     <a href="https://github.com/yiisoft" target="_blank">
         <img src="https://github.com/yiisoft.png" height="100px">
     </a>
-    <h1 align="center">Yii debug API</h1>
+    <h1 align="center">Yii Debug API</h1>
     <br>
 </p>
 
@@ -33,31 +33,26 @@ composer require yiisoft/yii-debug-api
 Routes will be registered automatically within Yii application router.
 You can check if everything is OK by going to `/debug` URL.
 
-## Testing
+## Documentation
 
-### Unit testing
+- [Internals](docs/internals.md)
 
-The package is tested with [PHPUnit](https://phpunit.de/). To run tests:
+## Support
 
-```shell
-./vendor/bin/phpunit
-```
-
-### Mutation testing
-
-The package tests are checked with [Infection](https://infection.github.io/) mutation framework. To run it:
+If you need help or have a question, the [Yii Forum](https://forum.yiiframework.com/c/yii-3-0/63) is a good place for that.
+You may also check out other [Yii Community Resources](https://www.yiiframework.com/community).
 
-```shell
-./vendor/bin/infection
-```
+## Support the project
 
-### Static analysis
+[![Open Collective](https://img.shields.io/badge/Open%20Collective-sponsor-7eadf1?logo=open%20collective&logoColor=7eadf1&labelColor=555555)](https://opencollective.com/yiisoft)
 
-The code is statically analyzed with [Psalm](https://psalm.dev/). To run static analysis:
+## Follow updates
 
-```shell
-./vendor/bin/psalm
-```
+[![Official website](https://img.shields.io/badge/Powered_by-Yii_Framework-green.svg?style=flat)](https://www.yiiframework.com/)
+[![Twitter](https://img.shields.io/badge/twitter-follow-1DA1F2?logo=twitter&logoColor=1DA1F2&labelColor=555555?style=flat)](https://twitter.com/yiiframework)
+[![Telegram](https://img.shields.io/badge/telegram-join-1DA1F2?style=flat&logo=telegram)](https://t.me/yii3en)
+[![Facebook](https://img.shields.io/badge/facebook-join-1DA1F2?style=flat&logo=facebook&logoColor=ffffff)](https://www.facebook.com/groups/yiitalk)
+[![Slack](https://img.shields.io/badge/slack-join-1DA1F2?style=flat&logo=slack)](https://yiiframework.com/go/slack)
 
 ## License
 
diff --git a/composer.json b/composer.json
index 8fba472..b83494e 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
         "issues": "https://github.com/yiisoft/yii-debug-api/issues?state=open",
         "forum": "https://www.yiiframework.com/forum/",
         "wiki": "https://www.yiiframework.com/wiki/",
-        "irc": "irc://irc.freenode.net/yii",
+        "irc": "ircs://irc.libera.chat:6697/yii",
         "chat": "https://t.me/yii3en",
         "source": "https://github.com/yiisoft/yii-debug-api"
     },
diff --git a/docs/internals.md b/docs/internals.md
new file mode 100644
index 0000000..8dc4049
--- /dev/null
+++ b/docs/internals.md
@@ -0,0 +1,45 @@
+# Internals
+
+## Unit testing
+
+The package is tested with [PHPUnit](https://phpunit.de/). To run tests:
+
+```shell
+./vendor/bin/phpunit
+```
+
+## Mutation testing
+
+The package tests are checked with [Infection](https://infection.github.io/) mutation framework with
+[Infection Static Analysis Plugin](https://github.com/Roave/infection-static-analysis-plugin). To run it:
+
+```shell
+./vendor/bin/roave-infection-static-analysis-plugin
+```
+
+## Static analysis
+
+The code is statically analyzed with [Psalm](https://psalm.dev/). To run static analysis:
+
+```shell
+./vendor/bin/psalm
+```
+
+## Rector
+
+Use [Rector](https://github.com/rectorphp/rector) to make codebase follow some specific rules or
+use either newest or any specific version of PHP:
+
+```shell
+./vendor/bin/rector
+```
+
+## Composer require checker
+
+This package uses [composer-require-checker](https://github.com/maglnet/ComposerRequireChecker) to check if all dependencies are correctly defined in `composer.json`.
+
+To run the checker, execute the following command:
+
+```shell
+./vendor/bin/composer-require-checker
+```