How to Edit the contents of an HTML Template?

Hello Friends,
Few days back one of my friend has given me an html template which he purchased it from themeforest.
And now I have uploaded all the contents to my domain hosting, and it goes live here omegapmc.in
Now my doubt is how do I edit the contents of it. I am purely uneducated in terms of coding, but would love to learn it practically. I would love to change the text present in the template as well as the images. But I am not sure from where to start with, I mean where exactly I…
How to Edit the contents of an HTML Template?

See original post by ksbharath86