Fix whitespace

Author: jpignata

README.md

@@ -27,33 +27,34 @@ image will be served from S3 directly.
 
 2. Deploy the CloudFormation stack
 
-  Run `bin/deploy` to deploy the CloudFormation stack. It will create a
-  temporary Amazon S3 bucket, package and upload the function, and create the
-  Lambda function, Amazon API Gateway RestApi, and an S3 bucket for images via
-  CloudFormation.
+    Run `bin/deploy` to deploy the CloudFormation stack. It will create a
+    temporary Amazon S3 bucket, package and upload the function, and create the
+    Lambda function, Amazon API Gateway RestApi, and an S3 bucket for images via
+    CloudFormation.
 
-  The deployment script requires the [AWS CLI][cli] version 1.11.19 or newer to
-  be installed.
+    The deployment script requires the [AWS CLI][cli] version 1.11.19 or newer
+    to be installed.
 
 3. Test the function
 
-   Upload an image to the S3 bucket and try to resize it via your web browser to
-   different sizes, e.g. with an image uploaded in the bucket called image.png:
+    Upload an image to the S3 bucket and try to resize it via your web browser
+    to different sizes, e.g. with an image uploaded in the bucket called
+    image.png:
 
-   - http://[BucketWebsiteHost]/300x300/path/to/image.png
-   - http://[BucketWebsiteHost]/90x90/path/to/image.png
-   - http://[BucketWebsiteHost]/40x40/path/to/image.png
+    - http://[BucketWebsiteHost]/300x300/path/to/image.png
+    - http://[BucketWebsiteHost]/90x90/path/to/image.png
+    - http://[BucketWebsiteHost]/40x40/path/to/image.png
 
-   You can find the `BucketWebsiteUrl` in the table of outputs displayed on a
-   successful invocation of the deploy script.
+    You can find the `BucketWebsiteUrl` in the table of outputs displayed on a
+    successful invocation of the deploy script.
 
 4. (Optional) Restrict resize dimensions
 
-  To restrict the dimensions the function will create, set the environment
-  variable `ALLOWED_DIMENSIONS` to a string in the format
-  *(HEIGHT)x(WIDTH),(HEIGHT)x(WIDTH),...*.
+    To restrict the dimensions the function will create, set the environment
+    variable `ALLOWED_DIMENSIONS` to a string in the format
+    *(HEIGHT)x(WIDTH),(HEIGHT)x(WIDTH),...*.
 
-  For example: *300x300,90x90,40x40*.
+    For example: *300x300,90x90,40x40*.
 
 ## License