docs: 📖 Update README.md

[Anselmoo]

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Summary by Sourcery

Enhance the README.md by adding an introductory description of SpectraFit, highlighting its purpose as a data analysis tool for different spectra types.

Documentation:

• Add a brief description to the README.md introducing SpectraFit as a data analysis tool for various types of spectra.

[semanticdiff-com]

Review changes with SemanticDiff.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request updates the README.md file to add a brief description of SpectraFit as a data analysis tool for all kinds of spectra. The change is minor but improves the project's introduction.

File-Level Changes

Change	Details	Files
Added a brief description of SpectraFit in the README	Inserted a horizontal line for visual separation Added a blockquote describing SpectraFit as a 'Data Analysis Tool for all kinds of Spectra'	README.md

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[sourcery-ai]

Hey @Anselmoo - I've reviewed your changes and they look great!

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟡 Documentation: 1 issue found

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (8d2065d) to head (4662db8).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #1525   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           44        44           
  Lines         4466      4466           
=========================================
  Hits          4466      4466           

Flag	Coverage Δ
unittests	100.00% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud