[cindykrafft]

A few pages don't render the way their source intends. I found most of these through mdbook build warnings, and I checked each one in a local build (mdbook 0.5.3, the version pinned in MODULE.bazel) before and after the change.

• Outline tables drop generic parameters. mdbook-course writes chapter names into the outline tables without escaping, so Box<T> renders as "Box" in the Smart Pointers outline, and Pin<Ptr> as "Pin" in the Pinning outline (mdbook warns "unclosed HTML tag <t>"). Table::add_row now escapes &, < and >. I added a unit test, and cargo test -p mdbook-course passes.
• course-structure.md: {{%course outline Unsafe}} renders as "not found - {{%course outline Unsafe}}" on the published page. The course is named Unsafe Deep Dive in unsafe-deep-dive/welcome.md, and find_course compares names exactly, so the directive now uses the full name.
• unsafe-deep-dive/safety-preconditions/references.md: the page closes a </details> but never opens one, so the speaker notes and the suggested solution show on the slide. I added <details> after the first code block. Could you check that this is where the notes are meant to start?
• chromium/.../generating-gn-build-rules.md: </detail> → </details>.
• unsafe-deep-dive/initialization/maybeuninit.md and zeroed-method.md: MaybeUninit<T> outside backticks renders as "MaybeUninit". Now in backticks.
• modules/solution.md: removed 9 leftover // ANCHOR: / // ANCHOR_END: lines. They are in plain code blocks, so they show on the page, and exercise.rs no longer defines those anchors.
• references/exercise.md: removed {{#include exercise.rs:magnitude}} and {{#include exercise.rs:normalize}}. exercise.rs has no such anchors, so they render as empty lines.
• running-the-course.md: the installation link pointed at #building, but the README has no such heading. It now points at #setup.

After this change the only mdbook build warning left is the one in unsafe-deep-dive/pinning.md, which #3284 fixes. mdbook test and dprint check pass.