Added install guide Issue #1884

[j0sh21]

Please don't hesitate to reach out to me for feedback or to share a Lightning Wallet LN URL.
I acquired information about this issue through https://nodesignal.space/spenden-bitcoin-bounties/

#1884

[netlify]

✅ Deploy Preview for specter-desktop-docs ready!

Name	Link
🔨 Latest commit
🔍 Latest deploy log	https://app.netlify.com/sites/specter-desktop-docs/deploys/65a5001640334624631befb7
😎 Deploy Preview	https://deploy-preview-2405--specter-desktop-docs.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[k9ert]

Awesome work! I did some changes:

• added a reference in the yaml-file so that it'll get visible in the left menu
• adjusted the headings. We only want one h1 heading in each file. It determines the Menu title and the h2 level headings get submenu-items. See the preview

Very clear and precise language. I only have two remarks:

• Why is the section "OS-Specific Apps for Specter Desktop" coming after the comparison/decision tree ? It should imho maybe even be the first option to discuss
• the electrum connection is already here since version 2.0.0.

Can you correct those two things?

[j0sh21]

Thank you!

The decision tree is designed to help users identify the most suitable installation method based on their technical skills and preferences. When writing I thought it was logical to first guide the user through a decision-making process before introducing OS-specific apps, which are more straightforward and user-friendly options.

Based on your remarks, I made the following corrections:

• Repositioning the "OS-Specific Apps for Specter Desktop" Section.
• Updating Information about Electrum Connection.

[k9ert]

as discussed on twitter, the decision tree is a bit weirdly formatted and could profit from https://mermaid-js.github.io/

[j0sh21]

Added the mermaid graph. Please have a look.

[k9ert]

closing this PR as everything has been merged in the other PR already.