Implemented Min() & Max() functions and updated README.md

[SadToBeNep]

Hello, I was using your lib for one of my project, and it was missing the .Min() function, so I added it

I am just learning C# and Git(Hub) too, so go easy on me if something

PS: Wasn't sure if I should open a Issue before the pull request

[dragon7307]

Hey, Glad you like the project.
I will have a look at your contribution and then merge it.
Thank you also for opening a pull request - that makes maintaining an open source project a whole lot easier!!

Of course, Min cannot be implemented without its counterpart Max, so I'll see when I have time to get around to that.
Since I'm planning to release version 1.3.0 at the end of february, this is when your contribution should get shipped into production.

PS: Opening an issue never hurts, but is unnecessary in this case, since your pr gives all needed information.

[SadToBeNep]

I also started to work on Max, most likely I will have time tomorrow and can push that too up here in another pr

[Guiorgy]

@SadToBeNep If you plan to implement Max as well, maybe instead of another PR, I'd suggest updating the current title an have this PR for both, since as dragon stated, it doesn't make sence to add one and not the other.

[dragon7307]

Great work - I'll merge it into a feature branch. I believe there are some missing overloads and implementing MinBy and MaxBy probably won't hurt, so I will implement them. I will also adapt the code to the projects style (e.g. lowercase local variables etc. ). And maybe it makes sense to look at vectorization here, since .Net does this internally.

[dragon7307]

Also for performance reasons an if construct should be used instead of a ternary expression,to avoid unnecessary reassignments.