[TL] - Explain Manual Partitioning for Dual Boot & VM in installation steps

[vish-rt]

Describe the improvement

Explain Manual Partitioning for dual boot and VM in installation steps

Why do we need this?

To explain and resolve confusion on partitioning on dual boot & VM install

Do you have a proposed solution?

Explaining how to dual boot & VM in installation steps

Do you want to work on this feature?

• [x] I am willing to implement this feature.

Terms and Conditions

• [X] I agree to follow this project's Code of Conduct

[MJ665]

Done https://github.com/tcet-opensource/documentation/pull/343