chore: document new DEST_DIR env var

README.md

@@ -38,13 +38,14 @@ jobs:
 
 The following settings must be passed as environment variables as shown in the example. Sensitive information, especially `AWS_ACCESS_KEY_ID` and `AWS_SECRET_ACCESS_KEY`, should be [set as encrypted secrets](https://help.github.com/en/articles/virtual-environments-for-github-actions#creating-and-using-secrets-encrypted-variables) — otherwise, they'll be public to anyone browsing your repository.
 
-| Key | Value | Suggested Type | Required |
-| ------------- | ------------- | ------------- | ------------- |
-| `AWS_ACCESS_KEY_ID` | Your AWS Access Key. [More info here.](https://docs.aws.amazon.com/general/latest/gr/managing-aws-access-keys.html) | `secret` | **Yes** |
-| `AWS_SECRET_ACCESS_KEY` | Your AWS Secret Access Key. [More info here.](https://docs.aws.amazon.com/general/latest/gr/managing-aws-access-keys.html) | `secret` | **Yes** |
-| `AWS_S3_BUCKET` | The name of the bucket you're syncing to. For example, `jarv.is`. | `secret` | **Yes** |
-| `AWS_REGION` | The region where you created your bucket in. For example, `us-east-1`. [Full list of regions here.](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html#concepts-available-regions) | `env` | **Yes** |
-| `SOURCE_DIR` | The local directory you wish to sync/upload to S3. For example, `./public`. Defaults to the root of your repository (`.`) if not provided. | `env` | No |
+| Key | Value | Suggested Type | Required | Default |
+| ------------- | ------------- | ------------- | ------------- | ------------- |
+| `AWS_ACCESS_KEY_ID` | Your AWS Access Key. [More info here.](https://docs.aws.amazon.com/general/latest/gr/managing-aws-access-keys.html) | `secret` | **Yes** | N/A |
+| `AWS_SECRET_ACCESS_KEY` | Your AWS Secret Access Key. [More info here.](https://docs.aws.amazon.com/general/latest/gr/managing-aws-access-keys.html) | `secret` | **Yes** | N/A |
+| `AWS_S3_BUCKET` | The name of the bucket you're syncing to. For example, `jarv.is`. | `secret` | **Yes** | N/A |
+| `AWS_REGION` | The region where you created your bucket in. For example, `us-east-1`. [Full list of regions here.](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html#concepts-available-regions) | `env` | **Yes** | N/A |
+| `SOURCE_DIR` | The local directory you wish to sync/upload to S3. For example, `./public` | `env` | No | `.` |
+| `DEST_DIR` | The directory inside of the S3 bucket you wish to sync/upload to. Eg: `my_project/assets`.  | `env` | No | `/` |
 
 
 ## License