diff --git a/README.md b/README.md
index 589fb03..bf23dcd 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ The code is based on the following projects:
 
 Most of the mj-* tags are supported. It's currently missing:
 
- - mj-include: will be implemented
+ - ~~mj-include: will be implemented~~ implemented in 1.1.1
  - mj-style: the inline attribute will be ignored 
  - mj-html-attributes: will not be supported, as it requires a css selector
 
@@ -38,14 +38,14 @@ maven:
 <dependency>
    <groupId>ch.digitalfondue.mjml4j</groupId>
    <artifactId>mjml4j</artifactId>
-   <version>1.0.3</version>
+   <version>1.1.1</version>
 </dependency>
 ```
 
 gradle:
 
 ```
-implementation 'ch.digitalfondue.mjml4j:mjml4j:1.0.3'
+implementation 'ch.digitalfondue.mjml4j:mjml4j:1.1.1'
 ```
 
 # Use
@@ -86,16 +86,25 @@ public class App {
 
 The `render` static method accept as a parameters:
 1) a string which will be then parsed and processed by the [html5 parser (jfiveparse)](https://github.com/digitalfondue/jfiveparse), or it can accept a `org.w3c.dom.Document` 
-2) a configuration object with language and optionally direction
+2) a configuration object with language, optionally a direction and an [IncludeResolver](https://javadoc.io/doc/ch.digitalfondue.mjml4j/mjml4j/latest/ch.digitalfondue.mjml4j/ch/digitalfondue/mjml4j/Mjml4j.IncludeResolver.html)
+
+
+## mj-include support
+
+By default, mjml4j don't have an [IncludeResolver](https://javadoc.io/doc/ch.digitalfondue.mjml4j/mjml4j/latest/ch.digitalfondue.mjml4j/ch/digitalfondue/mjml4j/Mjml4j.IncludeResolver.html) configured, thus `mj-include` will not work out of the box, you must implement or specify yourself.
+mjml4j offer 2 implementations:
+ - [FileSystemResolver](https://javadoc.io/doc/ch.digitalfondue.mjml4j/mjml4j/latest/ch.digitalfondue.mjml4j/ch/digitalfondue/mjml4j/Mjml4j.FileSystemResolver.html) if your resources are present on the filesystem
+ - [SimpleResourceResolver](https://javadoc.io/doc/ch.digitalfondue.mjml4j/mjml4j/latest/ch.digitalfondue.mjml4j/ch/digitalfondue/mjml4j/Mjml4j.SimpleResourceResolver.html) a resolver that need a [ResourceLoader](https://javadoc.io/doc/ch.digitalfondue.mjml4j/mjml4j/latest/ch.digitalfondue.mjml4j/ch/digitalfondue/mjml4j/Mjml4j.ResourceLoader.html) to be implemented
 
 
 # TODO:
- - mj-include
+ - ~~mj-include~~ implemented in 1.1.1
  - check https://github.com/mjmlio/mjml/compare/v4.14.1...v4.15.3 , printing especially
  - validation api:
    - add "parent element" check
    - attribute unit type check
  - improve the renderer
  - cleanup/rewrite the box model, kinda hacky
+ - more robust handling of invalid input (check mjml behaviour)