Update README.rst

Author: codingjoe

README.rst

@@ -6,7 +6,7 @@ A lightweight file upload input for Django and Amazon S3.
 Django-S3File allows you to upload files directly AWS S3 effectively
 bypassing your application server. This allows you to avoid long running
 requests from large file uploads. This is particuallary helpful for if
-you run your service on AWS Lambda or Heroku where you have a fix request
+you run your service on AWS Lambda or Heroku where you have a hard request
 limit.
 
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