Fix typo

HTTPs -> HTTPS

Author: changeworld

articles/event-hubs/authorize-access-shared-access-signature.md

@@ -54,7 +54,7 @@ The following recommendations for using shared access signatures can help mitiga
 - **Be careful with the SAS start time**: If you set the start time for SAS to **now**, then due to clock skew (differences in current time according to different machines), failures might be observed intermittently for the first few minutes. In general, set the start time to be at least 15 minutes in the past. Or, don’t set it at all, which make it valid immediately in all cases. The same generally applies to the expiry time as well. Remember that you might observe up to 15 minutes of clock skew in either direction on any request. 
 - **Be specific with the resource to be accessed**: A security best practice is to provide user with the minimum required privileges. If a user only needs read access to a single entity, then grant them read access to that single entity, and not read/write/delete access to all entities. It also helps lessen the damage if a SAS is compromised because the SAS has less power in the hands of an attacker.
 - **Don’t always use SAS**: Sometimes the risks associated with a particular operation against your Event Hubs outweigh the benefits of SAS. For such operations, create a middle-tier service that writes to your event hubs after business rule validation, authentication, and auditing.
-- **Always use HTTPs**: Always use HTTPS to create or distribute a SAS. If a SAS is passed over HTTP and intercepted, an attacker performing a man-in-the-middle attack is able to read the SAS and then use it just as the intended user could have, potentially compromising sensitive data or allowing for data corruption by the malicious user.
+- **Always use HTTPS**: Always use HTTPS to create or distribute a SAS. If a SAS is passed over HTTP and intercepted, an attacker performing a man-in-the-middle attack is able to read the SAS and then use it just as the intended user could have, potentially compromising sensitive data or allowing for data corruption by the malicious user.
 
 ## Conclusion
 Share access signatures are useful for providing limited permissions to Event Hubs resources to your clients. They're vital part of the security model for any application using Azure Event Hubs. If you follow the best practices listed in this article, you can use SAS to provide greater flexibility of access to your resources, without compromising the security of your application.