Move todos from README to GitHub

Also adds ari --help output to README

README.md

@@ -12,6 +12,31 @@ go install github.com/semperos/ari/cmd/ari@latest
 
 Then run `ari` for a REPL or `ari --help` to see CLI options.
 
+```
+ari is an interactive environment for array + relational programming.
+
+It embeds the Goal array programming language, with extensions for
+working with SQL and HTTP APIs.
+
+Usage:
+  ari [flags] [source file]
+
+Flags:
+      --config string          ari configuration (default "$HOME/.config/ari/ari-config.yaml")
+      --cpu-profile            write CPU profile to file
+  -d, --database string        DuckDB database (default: in-memory)
+      --debug                  enable detailed debugging output on panic
+  -e, --execute string         string of Goal code to execute, last result not printed automatically
+  -h, --help                   help for ari
+      --history string         history of REPL entries (default "$HOME/.config/ari/ari-history.txt")
+  -l, --load stringArray       Goal source files to load on startup
+  -m, --mode string            language mode at startup (default "goal")
+  -f, --output-format string   evaluation output format (default "goal")
+  -p, --println                print final value of the script + newline
+  -r, --raw                    raw REPL w/out history or auto-complete
+  -v, --version                print version info and exit
+```
+
 ## Features
 
 - [Goal] is the core language
@@ -42,34 +67,6 @@ Then run `ari` for a REPL or `ari --help` to see CLI options.
   - Help entries for SQL keywords (shown during auto-complete, still WIP)
   - Results of the last-run query/command set to the `sql.p` Goal global (for "SQL previous" and mirroring `ari.p`), so you can switch between `)sql` and `)goal` at the REPL to run queries via SQL and do data processing via Goal.
 
-## To Do
-
-See [CHANGES.md](CHANGES.md) for recent changes.
-
-Non-exhaustive list:
-
-- IN PROGRESS: Test coverage
-- IN PROGRESS: Consider which of ari's functions should be pervasive; review Goal's approach and implement
-- TODO: Consider which of ari's pervasive functions should operate on dictionaries
-- TODO: BUG When using `-l` flag, loaded files aren't completely evaluated. Evaluation stops partway through and it's not immediately clear why.
-- TODO: BUG `json.tbl` produces improper zero values when keys are missing. Where possible, column lists should be of uniform type and not generic if the data allows for it.
-- TODO: Make version of `fmt.tbl` that allows setting maximum column width.
-- TODO: Functions to conveniently populate SQL tables with Goal values.
-- TODO: User commands (as found in [APL](https://aplwiki.com/wiki/User_command)), executable from Goal or SQL modes
-- TODO: Integrate rate limiting/shaping (perhaps via uber-go/ratelimit)
-
-I plan to support the above items. The following are stretch goals, nice-to-have's, or thoughts for further consideration:
-
-- TODO: Use custom table functions via replacement scan to query Goal tables from DuckDB.
-- TODO: `)help` for cross-mode help
-- TODO: System functions to switch between rich and raw REPL `)repl.rich` and `)repl.raw`
-- IN PROGRESS: `tui.` functions in CLI mode using https://github.com/charmbracelet/lipgloss (already a transitive dependency) for colored output, etc.
-- TODO: Implement a subset of [q](https://code.kx.com/q/) functions to extend what Goal already has.
-- Specific user commands:
-  - TODO: Toggle pretty-printing (TBD what this means; can use JSON output at this point for possibly more familiar output)
-  - TODO: Toggle paging at the REPL (as found in [PicoLisp](https://picolisp.com/wiki/?home))
-  - TODO: Toggle colored output
-
 ## Examples
 
 I began building Ari to replicate the experience described in the [Background](#background) section of this README. That code is not publicly available at this time.