Fixed the displayed html tag in Armstrong Number Calculator

[Stranger1298]

Fixes Issue🛠️

Armstrong calculator display html code : Closes #655

Description👨‍💻

Issue was very simple, There was an extra space in the code which was causing it to display the html tag as normal text.

Type of change📄

• Bug fix (non-breaking change which fixes an issue)

How this has been tested✅

Ran on the local machine and verified that its fixed.

Checklist✅

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added demonstration in the form of GIF/video file
• I am an Open Source Contributor

Screenshots/GIF📷

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[github-actions]

Hey @Stranger1298, Welcome to the project CalcDiverse! 🎊
Thanks for your contribution! Your effort makes this project better. Keep it up! 🙌
Please wait for the PR to be reviewed. Happy Coding!! ✨

[Rakesh9100]

Please do not create a PR until you have been assigned to an issue @Stranger1298