Update install instructions, Readme, and add resources

[TLO218]

Description

Update the Readme and make it feel more inviting

Fixes # (issue/issues)
Gives a quickstart guide to newcomers on how to install the packages, Links to most usefull resources and tries to gives example code to test the installation

How Has This Been Tested?

Provided example is used to test different install instrutions

additional maitanance

This adds a new resources.md file along with an image for the sasview-hello_world example. By using Install.md and Resources.md with Pandoc to generate the corresponding web pages, we can simplify maintenance and minimize the risk of outdated information over time.

currently it also mentions the issue with launching the gui throught sas as it's only been introduced after the 6.1.1 release.

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce.

Review Checklist:

[if using the editor, use [x] in place of [ ] to check a box]

Install instructions (check at least one)

• test user installation with uv and pip
• test instucitons with the dev version

discussion

• should there be a badge talking about test coverage or CI
• discuss folder structure
• should python file be provided in tutorials repo and a test case be added for this in the ci
• discuss which citations and papers should be added to the end

[llimeht]

Huge improvement in the documentation, thanks!

A few comments inline.

I also wonder whether much of these docs should be somehow in the sphinx documentation... but now we have two sets of docs, one in md and one in rst.

[llimeht]

I'm not sure it's good to make the "short version if you know what you're doing" longer when there's already a longer version below. Maybe?

[llimeht]

This is very long for README. It also doesn't test any of sasview, but rather sasmodels and bumps.

It's a nice "how to script stuff" intro - perhaps it's worth separating that out?

[TLO218]

@gonzalezma and @DrPaulSharp raised similar concerns (that this might not be the correct space).
Would you suggest this then be moved to the sasmodels/sasdata readme or just to a sepprate md file.

Alternatively I would suggest to change the into text/heading accordingly and making this section collapsable

[drnpaul]

Some Typos corrected.
In 'Install using pip inside the working directory:' should be mentioned that the Linux environment is activated, and not the Windows enviroment.
'Hello World' example tested on Windows (10).
Replace 'MyAwsomefit' by 'MyAwesomefit'

[llimeht]

If your git knowledge is up to it, I'm quite comfortable with you rebasing and squashing commits so that this is a clean set of changes without accidental changes.

[llimeht]

I've pushed a few fixups and additional info to the the branch. I think it's better than what is currently there so worth merging - thank you @TLO218!

We might want to consider moving the scripting example elsewhere, or at least putting some screenshots before it, but that can happen later, and getting the installation instructions updated is more urgent.