(docs) introduction: fix tailwind config step

[SutuSebastian]

• [x] I have followed the Your First Code Contribution section of the Contributing guide

Performance optimisation can be applied to tailwind config content path towards react-flowbite, less files to analize = faster compile times.

Today we have an issue of big compile time due to website packages not being separated by the lib packages. This PR solves that.

Changes

• [x] fixed correct path in node_modules

Performance optimisation results

Before (86s)

After (859ms)

[vercel[bot]]

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Name	Status	Preview	Comments	Updated (UTC)
flowbite-react	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 21, 2023 3:05pm

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (7461173) 99.54% compared to head (588ad3b) 93.60%. Report is 154 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1142 +/- ## ========================================== - Coverage 99.54% 93.60% -5.95% ========================================== Files 163 213 +50 Lines 6621 9048 +2427 Branches 401 483 +82 ========================================== + Hits 6591 8469 +1878 - Misses 30 579 +549 ```

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