diff --git a/README.md b/README.md
index 3624a0ad..10a4bbd9 100644
--- a/README.md
+++ b/README.md
@@ -54,6 +54,7 @@ If you already have a Keycloak custom theme, it can be easily ported to Keycloak
     - [Changing just the look of the default Keycloak theme](#changing-just-the-look-of-the-default-keycloak-theme)
     - [Changing the look **and** feel](#changing-the-look-and-feel)
     - [Hot reload](#hot-reload)
+  - [Some pages aren't customizable. Why?](#some-pages-arent-customizable-why)
   - [Enable loading in a blink of an eye of login pages ⚡ (--external-assets)](#enable-loading-in-a-blink-of-an-eye-of-login-pages----external-assets)
 - [Support for Terms and conditions](#support-for-terms-and-conditions)
 - [GitHub Actions](#github-actions)
@@ -178,6 +179,14 @@ You can find an example of such customization [here](https://github.com/InseeFrL
 
 And you can test the result in production by trying the login register page of [Onyxia](https://datalab.sspcloud.fr)
 
+WARNING: If you chose to go this way use:
+```json
+"dependencies": {
+    "keycloakify": "~X.Y.Z"
+}
+```
+in your `package.json` instead of `^X.Y.Z`. A minor release might break your app.
+
 ### Hot reload
 
 Rebuild the theme each time you make a change to see the result is not practical.
@@ -204,6 +213,14 @@ Then `yarn start`, you will see your login page.
 
 Checkout [this concrete example](https://github.com/garronej/keycloakify-demo-app/blob/main/src/index.tsx)
 
+## Some pages aren't customizable. Why?
+
+This project only support the most common user facing pages of Keycloak login.
+[Here is](https://user-images.githubusercontent.com/6702424/116784128-d4f97f00-aa92-11eb-92c9-b024c2521aa3.png) the complete list of pages.  
+And [here are](https://github.com/InseeFrLab/keycloakify/tree/main/src/lib/components) the pages currently implemented.  
+If you need to customize pages that are not supported yet you can submit an issue about it and wait for me get it implemented.
+If you can't wait PR are welcome! [Here](https://github.com/InseeFrLab/keycloakify/commit/0163459ad6b1ad0afcc34fae5f3cc28dbcf8b4a7) is the commit that adds support 
+for the `login-otp.ftl` page. You can use it as a model for implementing other pages.
 ## Enable loading in a blink of an eye of login pages ⚡ (--external-assets)
 
 By default the theme generated is standalone. Meaning that when your users
@@ -261,6 +278,8 @@ and a `build/static/` directory generated by webpack.
 You won't be able to [import things from your public directory **in your JavaScript code**](https://create-react-app.dev/docs/using-the-public-folder/#adding-assets-outside-of-the-module-system). 
 (This isn't recommended anyway).
 
+
+
 ## `@font-face` importing fonts from the `src/` dir
 
 If you are building the theme with [--external-assets](#enable-loading-in-a-blink-of-a-eye-of-login-pages-)