The heading scan matches a keyword contained in a heading, so a plural
could never reach a singular heading: `customization` found "7.
CUSTOMIZATION" and `customizations` found nothing at all. The index
lookup was exact-match, so it could not cover the gap either without an
alias per word.
Both now try the keyword as typed first, then its singular/plural
forms. Each variant is tried against every heading before the next one
is considered, so a loose plural cannot beat an exact hit further down
the document.
Cover the ~50 previously-unindexed headings (function reference entries
like play-media, steam-dl, bd-pull, cffetch/ffetch, config-toggle, dops,
rand_string, fish_prompt/fish_mode_prompt/fish_right_prompt, lD, mv, p,
fast/fast-cli, gip4/gip6, fzf-update, sponge_filter_secrets,
fzf_configure_bindings, ld; the C1-C6 component sub-category headings
filesystem/network/monitor/shell-tools/dev-tools,
plugin-management/pkg-wrappers/venv/telemetry/sync,
key-bindings/environment/prompt, terminal-abbrs/window-mgmt/
notifications/history-logs/pkg-upgrade, terminal-capture/
multiplexer-capture/pkg-logs, first-run/greeting-message; plus
Config Variables' "Other", the Integrations "Scrollback History", the
dependency catalog's Optional/Terminal Emulators tiers, the C0/always
override note, and "Reading the source directly").
Expanded aliases for existing headings: play-media also reachable as
video/audio/mpv/vlc, steam-dl as steam, cffetch/ffetch share fetch/
fastfetch/neofetch/sysinfo, rand_string as random/password/randomword,
gip4/gip6 as ipv4/ipv6, dops as docker-ps, ld as lazydocker, bd-pull as
beads, fast-cli as speedtest, sponge_filter_secrets as secret-filter.
Fixed two pre-existing duplicate normalized keys (key-bindings/
keybindings and man-page/manpage both collapsed to a single entry) and
repointed config-toggle from the generic config-settings heading to its
own dedicated "### config-toggle" heading now that one exists.
Judgment calls on ambiguous/repeated heading text (left unindexed, or
indexed via a distinguishing keyword instead of the literal name):
- "### Sub-categories" repeats 7 times (once per opinionated-components
overview and once per C1-C6 page); an index entry pointing at that
text always resolves to the first occurrence, so none of the 7 are
indexed under that name. Each parent (C1-C6, and the Minimal Mode
section) already has its own keyword.
- "### search" appears twice: the pkg search subcommand (kept, existing
`search` key) and the C1 command-shadow sub-category. The C1 one
isn't separately reachable for the same reason.
- "## Integrations" appears twice (Section 1 integrations writeup and
the Dependency Catalog's Integrations tier table); only the first
(already indexed) is reachable.
- Where a C1-C6 sub-category heading text collides after normalization
with an existing higher-value keyword (key-bindings, network,
notifications, venv), the new entry uses a distinguishing keyword
(bindings-toggle, network-shadow, notifications-toggle, venv-toggle)
instead of contesting the existing one.
- `prompt` now points at the fuller "## Prompt and Theme" section
rather than the one-line C3 sub-category blurb; the latter is
reachable via `prompt-toggle`.
rootiest