update some verbiage in the readme

[reubeno]

No description provided.

[github-actions]

Test Results

344 tests   329 ✅  2m 16s ⏱️
 56 suites   15 💤
  8 files      0 ❌

Results for commit 452fb9a.

[github-actions]

Performance Benchmark Report

Benchmark name	Baseline (ns)	Test/PR (ns)	Delta (ns)	Delta %
expand_one_string	3318 ns	3320 ns	+2 ns	🟠 +0.06%
instantiate_shell	51312 ns	52204 ns	+892 ns	🟠 +1.74%
instantiate_shell_with_init_scripts	48703085 ns	48628946 ns	-74139 ns	🟢 -0.15%
parse_bash_completion	6641072 ns	6608529 ns	-32543 ns	🟢 -0.49%
parse_sample_script	10934 ns	10900 ns	-34 ns	🟢 -0.31%
run_echo_builtin_command	92009 ns	90995 ns	-1014 ns	🟢 -1.10%
run_one_builtin_command	108697 ns	109320 ns	+623 ns	🟠 +0.57%
run_one_external_command	1810045 ns	1814068 ns	+4023 ns	🟠 +0.22%
run_one_external_command_directly	1042453 ns	1033928 ns	-8525 ns	🟢 -0.82%

Code Coverage Report

Package	Base Coverage	New Coverage	Difference
cli.src	🟠 73.95%	🟠 73.95%	⚪ 0%
interactive-shell.src	🟢 75.88%	🟢 75.88%	⚪ 0%
parser.src	🟢 85.86%	🟢 85.86%	⚪ 0%
shell.src	🟢 79.98%	🟢 79.98%	⚪ 0%
shell.src.builtins	🟠 64.03%	🟠 64.03%	⚪ 0%
Overall Coverage	🟢 78.02%	🟢 78.02%	⚪ 0%

Minimum allowed coverage is 0%, this run produced 78.02%