README.md in anyway_config-2.5.1 vs README.md in anyway_config-2.5.2

@@ -1,8 +1,9 @@
 [![Cult Of Martians](http://cultofmartians.com/assets/badges/badge.svg)](https://cultofmartians.com/tasks/anyway-config-options-parse.html#task)
 [![Gem Version](https://badge.fury.io/rb/anyway_config.svg)](https://rubygems.org/gems/anyway_config) [![Build](https://github.com/palkan/anyway_config/workflows/Build/badge.svg)](https://github.com/palkan/anyway_config/actions)
 [![JRuby Build](https://github.com/palkan/anyway_config/workflows/JRuby%20Build/badge.svg)](https://github.com/palkan/anyway_config/actions)
+[![TruffleRuby Build](https://github.com/palkan/anyway_config/workflows/TruffleRuby%20Build/badge.svg)](https://github.com/palkan/anyway_config/actions)
 
 # Anyway Config
 
 > One configuration to rule all data sources
 
@@ -612,17 +613,17 @@
 
 Environmental variables for your config should start with your config name, upper-cased.
 
 For example, if your config name is "mycoolgem", then the env var "MYCOOLGEM_PASSWORD" is used as `config.password`.
 
-By default, environment variables are automatically type cast\*:
+By default, environment variables are automatically type cast (rules are case-insensitive):
 
-- `"True"`, `"t"` and `"yes"` to `true`;
-- `"False"`, `"f"` and `"no"` to `false`;
+- `"true"`, `"t"`, `"yes"` and `"y"` to `true`;
+- `"false"`, `"f"`, `"no"` and `"n"` to `false`;
 - `"nil"` and `"null"` to `nil` (do you really need it?);
-- `"123"` to 123 and `"3.14"` to 3.14.
+- `"123"` to `123` and `"3.14"` to `3.14`.
 
-\* See below for coercion customization.
+Type coercion can be [customized or disabled](#type-coercion).
 
 *Anyway Config* supports nested (_hashed_) env variables—just separate keys with double-underscore.
 
 For example, "MYCOOLGEM_OPTIONS__VERBOSE" is parsed as `config.options["verbose"]`.