improved spacing in continuity and limits and added formula in continuity page

[rohitkhicher001]

…uity

Related Issue

• Info about Issue or bug

Fixes: #[issue number that will be closed through this PR]

Describe the changes you've made

A clear and concise description of what you have done to successfully close your assigned issue. Any new files? or anything you feel to let us know!

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 made corresponding changes to the documentation.
• My changes generate no new warnings.

Screenshots

Original	Updated
original screenshot	updated screenshot

[github-actions]

Our team will soon review your PR. Thanks @rohitkhicher001 :)

[Amit366]

@rohitkhicher001 the margin for formula is applied for all calculators and also mention issue number

[rohitkhicher001]

issue number is #553

[rohitkhicher001]

after adding margin in calculator formula spacing of all calculators look better and aligned.

[Amit366]

@rohitkhicher001 can u send one screen shot for the continuity calculator

[github-actions]

Thank you @rohitkhicher001 for taking out your valuable time in order to contribute to our project. Looking forward for more such amazing contributions :).