diff --git a/README.md b/README.md
index 594e767..83efaa8 100644
--- a/README.md
+++ b/README.md
@@ -68,3 +68,14 @@ jobs:
           message: "synchronizing Readme"
           silent: true
 ```
+
+### Configuration
+
+| input                | description                                                             |
+| -------------------- | ----------------------------------------------------------------------- |
+| token                | Token for the repo. Can be passed in using {{ secrets.GITHUB_TOKEN }}   |
+| markdown (Optional)  | Target markdown file path. (default: "README.md")                       |
+| message (Optional)   | Commit message for action. (default: "Embedding code into Markdown")    |
+| no_change (Optional) | Issue comment at no changed (default: "No changes on README!" )         |
+| output (Optional)    | Output markdown file path. If none, override target file. (default: "") |
+| silent (Optional)    | No issue comment in silent mode (default: false)                        |
diff --git a/action.yaml b/action.yaml
index 62848c6..0b5d1bf 100644
--- a/action.yaml
+++ b/action.yaml
@@ -3,7 +3,7 @@ author: "@tokusumi"
 description: Action to synchronize "any" code in markdown with an external file. No more managing code as plain text.
 inputs:
   token:
-    description: Token for the repo. Can be passed in using {{ secrets.GITHUB_TOKEN}}
+    description: Token for the repo. Can be passed in using {{ secrets.GITHUB_TOKEN }}
     required: true
   markdown:
     description: Target markdown file path.