Improve documentation

[gustavoferrazfontes]

Expected Behavior

More documentation about

• select statements
• sql functions joins
• comparison operators
• dapper extansions.

Actual Behavior

There are just a get started with simple statements.

[kidchenko]

Github wikis have a limitation to only maintainers update the wiki. To solve this, we can create a github page to host the docs, so we can start send PR to improve the docs.

[nicolastakashi]

Hi @kidchenko!

I like so much this idea. If the other contributors also like we can do that.

@gustavoferrazfontes @AlbertoMonteiro What do you think about that?

[gustavoferrazfontes]

@kidchenko, @nicolastakashi and @AlbertoMonteiro

I created a branch gh-pages for the flepper. It's very simple but I think that already a beginning.