Fix docs (#51)

Co-authored-by: Sergei Predvoditelev <[email protected]>

LICENSE.md

@@ -5,13 +5,13 @@ 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.
 

README.md

@@ -25,6 +25,14 @@ The package provides:
 
 - PHP 7.4 or higher.
 
+## Installation
+
+The package could be installed with [Composer](https://getcomposer.org):
+
+```shell
+composer require yiisoft/http
+```
+
 ## Method constants
 
 Individual HTTP methods could be referenced as
@@ -134,10 +142,15 @@ class StaticController
 
 - [Internals](docs/internals.md)
 
-## Support
+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).
 
-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).
+## License
+
+The Yii HTTP is free software. It is released under the terms of the BSD License.
+Please see [`LICENSE`](./LICENSE.md) for more information.
+
+Maintained by [Yii Software](https://www.yiiframework.com/).
 
 ## Support the project
 
@@ -150,10 +163,3 @@ You may also check out other [Yii Community Resources](https://www.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
-
-The Yii HTTP is free software. It is released under the terms of the BSD License.
-Please see [`LICENSE`](./LICENSE.md) for more information.
-
-Maintained by [Yii Software](https://www.yiiframework.com/).

docs/internals.md

@@ -24,12 +24,3 @@ The code is statically analyzed with [Psalm](https://psalm.dev/). To run static
 ```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
-```