Merge introduction into guides

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It seems this heading level was exessive. I changed it to be in bold

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I think just Quick Start is more like a standard name along with Installation or Getting Started (you skim for them usually)

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Shorten it as it's already under the "Installation" section hierarchically?

I also got problems with some other heading as it seems they to be too long for the table of contents:

Is it possible to shorten them too?

I think for highlighting text visually we can use other methods as in my opinion the main role of headings is to provide semantics (e.g. consider a blind person trying to navigate through them on a reader)

WDYT?

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I think those examples are also very basic so I would rather keep like one example vs other examples difference instead of simple vs indepth

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Hi @lwinfree @sapetti9,

Here are my ideas and minor changes based on @lwinfree's work in #685:

• merging Introduction into Guides (as not it's not a copy of the Readme so there is no reason to distinguish it from the guides. And we will get more space in the top-bar for notebooks/videos/etc)
• proposing Basic Examples instead of Overview Examples not to clash with Guides Overview
• add also comment to the PR itself

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Also, I think it will be critical then to add some diagrams/etc to the Introduction as, for now, it's the only text. For example, in the readme, I tried to be as concise as possible and provide bold/lists/colors/code blocks - https://github.com/frictionlessdata/frictionless-py/blob/master/README.md - to make it more fun to scan as one can just lose attention if it looks too texty I guess

So I would rather go with "describe me Frictionless as I were 5 year old" style for introduction than user-stories in this form and a lot of plain text. And it will fit then better in the progressive documenatvion complexity concepts (starting from the simplest, ending with the most advanced)

WDYT?

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I was thinking a lot and finally decided to make a try on the intro small tweaks. The only goal was to make it more light-weighted structurally/visually to a new user:

WDYT?

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@lwinfree
This PR starts to block me so I'm going to merge this and then let's discuss and revert changes we're not agreed on. Basically, it's anyway easier to work on top of the docs changes as I did with your PR (merging as it is and then proposing updates)

I hope you will be back soon!