updated and fixed doc (markdown spellcheck)

doc/todo.md

@@ -47,23 +47,27 @@ version-bump.
 ## Module improvements
 
 ### compress
+
 - [ ] **`taz` progress bar** — show a `pv` / `dd`-based progress indicator when
   compressing large trees, gated behind a `-p` flag. **[medium]**
 - [ ] **`utaz` integrity check** — run `tar -tOf` / `unzip -t` / `7z t` before
   extracting and abort if the archive is corrupt. **[easy]**
 
 ### filefct
+
 - [ ] **`findbig` / `findzero` / `finddead` — `fd` integration** — optionally
   use `fd` instead of `find` when available for faster traversal. **[easy]**
 - [ ] **`file_stats` — human-readable totals** — add `--human` flag to emit
   sizes in K/M/G instead of bytes. **[easy]**
 
 ### info
+
 - [X] **`showinfo` fallback** — when neither `neofetch` nor `fastfetch` is
   installed, print a minimal sysinfo block (hostname, OS, kernel, uptime,
   CPU, RAM) using pure Bash + `/proc`. **[medium]**
 
 ### net
+
 - [X] **`dwl` resume support** — pass `-C -` to curl / `--continue-at -` to
   wget for interrupted downloads; gate behind a `-r` flag. **[easy]**
 - [ ] **`myextip` multiple providers** — fall back to a secondary URL
@@ -71,15 +75,18 @@ version-bump.
   **[easy]**
 
 ### processes
+
 - [X] **`ku` dry-run flag** — add `-n` / `--dry-run` to print what would be
   killed without acting. **[easy]**
 
 ### pwd
+
 - [ ] **`genpwd` passphrase mode** — add `-w` / `--words N` to generate
   word-based passphrases (diceware-style) from `/usr/share/dict/words`.
   **[medium]**
 
 ### ssh
+
 - [ ] **SSH agent management** — add `ssh_agent_start` / `ssh_agent_stop` helpers
   that start a persistent `ssh-agent`, add configured keys, and survive
   re-login via a socket stored in `~/.ssh/agent.env`. **[medium]**
@@ -87,6 +94,7 @@ version-bump.
   matching entries in one call. **[easy]**
 
 ### updates
+
 - [ ] **Automatic update check age** — store a timestamp in `~/.cache/profile_last_check`;
   skip the network request in `check_updates -q` if the last check was less
   than `UPDT_CHECK_INTERVAL` hours ago (configurable, default 24). **[medium]**