diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 33e8187..d3ee08c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -6,7 +6,7 @@ jobs:
     name: Wait unavailable docker image
     steps:
     - name: Wait Docker image
-      uses: PaulLesur/wait-docker-image-github-action@v0.2.3
+      uses: PaulLesur/wait-docker-image-github-action@v1.0
       with:
         image: test/test
         tag: master
@@ -14,6 +14,6 @@ jobs:
         fail-on-timeout: false
     
     - name: Wait docker image
-      uses: PaulLesur/wait-docker-image-github-action@v0.2.3
+      uses: PaulLesur/wait-docker-image-github-action@v1.0
       with:
         image: ubuntu
diff --git a/README.md b/README.md
index 5a3dfe7..0022110 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,41 @@
 # wait-docker-image-github-action
 A simple Github Action waiting for a Docker image.
+
+## Inputs
+
+### Required
+#### `image`
+_String_
+The name of the image to wait for.
+
+### Optional
+#### `tag`
+_String_
+Optional tag for the image, default: `latest`
+
+#### `timeout`
+_Integer_
+Timeout in seconds, default: `3600`
+
+#### `fail-on-timeout`
+_Boolean_
+Wether to fail the job or not if the timeout is over, default: `true`
+
+#### `user`
+_String_
+Registry user to use.
+
+#### `password`
+_String_
+Registry password to use.
+
+## Example usage
+Example usage to wait for ubuntu:18.04 image to be available, if the image is not available after 1 minute, the job does not fail and continues.
+```
+uses: PaulLesur/wait-docker-image-github-action@v1.0
+with:
+    image: ubuntu
+    tag: 18.04
+    timeout: 60
+    fail-on-timeout: false
+```
\ No newline at end of file