Fix migration mojibake and broken links; report remaining link issues (#19)

## Link & rendering review of PowerShell.org

I built the site locally with Hugo (v0.155.3 extended) and audited the
full rendered output (4,377 HTML pages, ~7,450 distinct external URLs)
plus the Markdown source for broken links and misrendered content. This
PR **fixes the two clear, mechanical issues** and **reports the rest**
below for a maintainer decision (the right fix is ambiguous).

---

### ✅ Fixed in this PR

**1. Double-encoded UTF-8 "mojibake" across ~400 pages**
During the WordPress → Hugo migration, non-breaking spaces and Latin-1
symbols were double-encoded, leaving a stray `Â` before each character
(byte pattern `C3 82 C2 xx`). This rendered as visible garbage on the
live site, e.g.:
- `Azure runs Linux _just fine. _Huzzah!`
- `PowerShell and PowerGUI®`

The fix reverses the encoding by dropping the spurious `C3 82` prefix,
restoring the intended `nbsp`, `®`, `·`, `«`, `½`, and `µ`. **7,939
sequences across 404 files**, plus 7 isolated leftover `Â` artifacts in
podcast show notes. After the fix, **zero** `Â` artifacts remain in the
rendered HTML.

**2. Malformed nested Markdown link**
(`content/podcast/2023-11-06-...merrill-fernandos-toolbox...`)
`[akasearch.net]([http://akasearch.net](http://akasearch.net))` rendered
with URL-encoded brackets. Corrected to a single clean link.

---

### 📋 Reported — needs a maintainer decision (not changed here)

**3. Broken internal links to old WordPress sections that no longer
exist**
Reference-style links in ~10 historical articles point to paths that 404
on the new site. Targets are ambiguous (some content is simply gone), so
I left them untouched:

| Old path | Suggested target | Example file |
|---|---|---|
| `/discuss/` | `https://forums.powershell.org`? |
`2013-02-11-winter-scripting-camp-the-post-mortem.md` |
| `/newsletter/` | (gone?) |
`2013-04-05-coming-tips-for-the-scripting-games.md` |
| `/games/` | (Scripting Games retired) |
`2013-04-06-2013-scripting-games-mighty-panel-of-celebrity-judges.md` |
| `/people/`, `/members` | `/authors/`? |
`2013-04-15-changes-coming-to-powershell-org.md`,
`2018-10-24-powershell-org-site-status-update.md` |
| `/ebooks/`, `/videos/` | (gone?) |
`2016-06-24-heres-what-youve-missed...md` |
| `/wp/newsletter` | (gone?) |
`2013-07-23-techsessions-free-powershell-webinars.md` |

Note: some of these reference definitions also have mismatched link
titles (e.g. `[1]: /newsletter/ "PowerShell Script that Relaunches as
Admin"`), suggesting the migration tool collapsed several distinct URLs
onto one wrong target.

**4. Broken relative links** in
`content/articles/2019-06-14-universal-dashboard-templates-...md`:
`[…](the-why)` and `[…](the-how)` resolve to nonexistent pages — they
were likely in-page anchors in the original.

**5. Scheme-less / malformed links rendered as relative**:
- `twitter.com/jeffhicks` (no `https://`) in
`2013-04-22-meet-the-scripting-games-judges-jeffery-hicks.md` and
`2013-02-16-phillyposh-...md`.

**6. Two pages drop content as "raw HTML omitted"** (Hugo
`markup.goldmark.renderer.unsafe: false`):
- `content/podcast/2013-08-14-episode-238-...scriptcs.md` — the IRC chat
log uses `<nickname>` angle brackets, so those lines are stripped from
the page.
- `content/articles/2011-05-18-configuring-rbac-for-mobileshell-...md` —
an embedded `<?xml?>` block and HTML comments are dropped.

Recommended fix: escape the angle brackets (or wrap the IRC log in a
fenced code block) rather than enabling `unsafe` globally.

---

### Verification
- `hugo --gc --minify` builds cleanly (only the two pre-existing "raw
HTML omitted" warnings remain, item 6 above).
- Diff is purely character-level: 405 files, balanced 3,018/3,018 line
modifications, no content added or removed.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---
_Generated by [Claude
Code](https://claude.ai/code/session_01QWdScrWP32GB7vZBjx87Jd)_

---------

Co-authored-by: Claude <noreply@anthropic.com>

Author: HeyItsGilbert

.gitignore

@@ -1,5 +1,9 @@
 public/
 .hugo_build.lock
 
+# Node / build tooling
+node_modules/
+package-lock.json
+
 # Local Netlify folder
 .netlify