[$15][MSFT-139] [Challenge Feed] No descriptive word for number of registrant while using the screen reader

[veshu]

Steps to Reproduce

1. Go to https://www.topcoder.com/challenges
2. Switch on the screen reader
3. Press Tab key until the number of registrants is focused

Expected Result
It should be read-out by the screen reader > Number of Registrants or Number of Registrants

Actual Result
No descriptive word for a number of registrants while using the screen reader

Device: Desktop/Labtop
Operating System: Windows
Browser: Chrome

WCAG Category: 1. Perceivable
WCAG Level: A
WCAG Success Criterion: 1.3.1 Info and Relationships
Screen Reader Used: JAWS
Accessibility Audit Tool used: N/A

Attachment
https://topcodermsft-my.sharepoint.com/personal/pd-topcoder_topcodermsft_onmicrosoft_com/Documents/Forms/All.aspx?cid=6aa53cde%2D1eef%2D4bae%2Dbfe5%2Df5f5f79e9df4&FolderCTID=0x0120005C598A51049FC14CBA882E1AEE168F51&sortField=Modified&isAscending=true&id=%2Fpersonal%2Fpd%2Dtopcoder%5Ftopcodermsft%5Fonmicrosoft%5Fcom%2FDocuments%2FMSFT%2DTeams%2DQA%2FJune%202019%2F29%20Jun%2FTest%20Results%2FBug%20Videos%20%26%20Log%20Files%2Fcodejam%2DAccessibility%2F49

[ThomasKranitsas]

Contest https://www.topcoder.com/challenges/30096047 has been created for this ticket.

This is an automated message for thomaskranitsas via Topcoder X

[ThomasKranitsas]

Contest https://www.topcoder.com/challenges/30096047 has been updated - the new changes has been updated for this ticket.

This is an automated message for thomaskranitsas via Topcoder X

[cwdcwd]

Contest https://www.topcoder.com/challenges/30096047 has been updated - it has been assigned to PkDurlabhji.

This is an automated message for lazybaer via Topcoder X

[PrakashDurlabhji]

@veshu PR #2945