update

README.md

@@ -9,9 +9,9 @@ AWS assume role credential wrapper.
 
 awscredswrap uses temporary credentials for the specified iam role to set a shell environment variable or execute a command.
 
-## Use as CLI
+# Use as CLI
 
-### Install
+## Install
 
 - Brew
 
@@ -21,7 +21,7 @@ $ brew install youyo/tap/awscredswrap
 
 Other platforms are download from [github release page](https://github.com/youyo/awscredswrap/releases).
 
-### Usage
+## Usage
 
 ```bash
 $ awscredswrap --help
@@ -39,13 +39,13 @@ Flags:
       --version                    version for awscredswrap
 ```
 
-#### As command wrapper
+### As command wrapper
 
 ```console
 $ awscredswrap --role-arn arn:aws:iam::00000000:role/foo -- some_command [arg1 arg2...]
 ```
 
-#### As env exporter
+### As env exporter
 
 When awscredswrap is executed with no arguments, awscredswrap outputs shell script to export AWS credentials environment variables.
 
@@ -65,33 +65,31 @@ $ eval $(awscredswrap --role-arn arn:aws:iam::00000000:role/foo)
 
 Temporary credentials has expiration time (about 1 hour).
 
----
+# Use as GitHub Actions
 
-## Use as GitHub Actions
+## Inputs
 
-### Inputs
-
-#### `role_arn`
+### `role_arn`
 
 **Required** The arn of the role to assume.
 
-#### `role_session_name`
+### `role_session_name`
 
 An identifier for the assumed role session. (default awscredswrap@GitHubActions)
 
-#### `duration_seconds`
+### `duration_seconds`
 
 The duration, in seconds, of the role session. (default 3600)
 
-### ENV
+## ENV
 
 - `AWS_ACCESS_KEY_ID` **Required**
 - `AWS_SECRET_ACCESS_KEY` **Required**
 - `AWS_DEFAULT_REGION` **Required**
 
 Recommended to get `AWS_ACCESS_KEY_ID` and `AWS_SECRET_ACCESS_KEY` from secrets.
 
-### Example usage
+## Example usage
 
 ```yaml
 on: [push]