docs: Simplify README skill placement

Author: smcllns

README.md

@@ -15,27 +15,10 @@ A demo page (`test/fixture.html`) demonstrates all the passing HTML features.
 
 ![](demo.png)
 
-## Installation
+## Install Obsidian Plugin
 
-### Install from Obsidian directly
-
-* Go to Obsidian Community Plugins: [community.obsidian.md/plugins/html-docs](https://community.obsidian.md/plugins/html-docs)
-* Click Install
-
-### Install manually
-
-1. Download `main.js`, `manifest.json`, and `styles.css` from the [latest release](https://github.com/smcllns/obsidian-plugin-html-docs/releases/latest)
-2. Place those files into `<vault>/.obsidian/plugins/html-docs/`.
-3. Enable **HTML Docs** in Obsidian's Community Plugins settings.
-
-Releases are built and signed by GitHub Actions ([.github/workflows/release.yml](.github/workflows/release.yml)) so the binaries carry a [build attestation](https://docs.github.com/en/actions/security-for-github-actions/using-artifact-attestations/using-artifact-attestations-to-establish-provenance-for-builds) you can verify against the source.
-
-### Optional Agent Skill
-
-There is an optional agent skill so your agent can author HTML that fits this plugin's sandbox, theme tokens, assets, and embeds.
-
-- Skills CLI: `npx skills add smcllns/skills --skill obsidian-html-docs`
-- Manual: [smcllns/skills/skills/obsidian-html-docs/SKILL.md](https://github.com/smcllns/skills/blob/main/skills/obsidian-html-docs/SKILL.md)
+* Obsidian Community Plugins: [HTML Docs](https://community.obsidian.md/plugins/html-docs)
+* Optional Agent Skill: [obsidian-html-docs/SKILL.md](https://github.com/smcllns/skills/blob/main/skills/obsidian-html-docs/SKILL.md)
 
 ### Build and install from source
 
@@ -79,17 +62,12 @@ Embed HTML docs like other Obsidian embeds. Embeds default to about 600px tall;
 ![[doc.html|600x400]]
 ```
 
-Each iframe receives a one-way snapshot of Obsidian theme styles. HTML docs can use these CSS variables to match light/dark mode, theme colors, and fonts without giving the iframe permission to read Obsidian or the vault. Use fallbacks so files still work outside Obsidian:
+### Optional Agent Skill
 
-```css
-:root {
-  color-scheme: var(--obsidian-color-scheme, light dark);
-  --bg: var(--obsidian-bg, light-dark(#fff, #0e1014));
-  --text: var(--obsidian-text, light-dark(#16161a, #e7e9ec));
-}
-```
+There is an optional agent skill so your agent can author HTML that fits this plugin's sandbox, theme tokens, assets, and embeds.
 
-Available CSS variables: `--obsidian-color-scheme`, `--obsidian-bg`, `--obsidian-bg-2`, `--obsidian-text`, `--obsidian-text-muted`, `--obsidian-accent`, `--obsidian-border`, `--obsidian-font`, `--obsidian-font-mono`.
+* Skills CLI: `npx skills add smcllns/skills --skill obsidian-html-docs`
+* Manual: [smcllns/skills/skills/obsidian-html-docs/SKILL.md](https://github.com/smcllns/skills/blob/main/skills/obsidian-html-docs/SKILL.md)
 
 ## Obsidian Plugin Docs