update shellenv and related docs #232

Job	Run time
package (x64, 18, linux, @yao-pkg/[email protected])	8m 11s
package (x64, 18, macos, @yao-pkg/[email protected])	8m 18s
package (x64, 18, win, @yao-pkg/[email protected])	8m 25s
package (arm64, 18, linux, @yao-pkg/[email protected])	1h 15m 58s
package (arm64, 18, macos, @yao-pkg/[email protected])	1h 13m 34s
package (arm64, 18, win, @yao-pkg/[email protected])	1h 14m 59s
sign-n-deploy (windows-2022, cli-node18-win-x64-caae645cd7f1299b0c7db0dbc8192a4f738bd1fb, lando/c...	2m 18s
sign-n-deploy (windows-2022, cli-node18-win-arm64-caae645cd7f1299b0c7db0dbc8192a4f738bd1fb, lando...	2m 13s
sign-n-deploy (macos-12, cli-node18-macos-x64-caae645cd7f1299b0c7db0dbc8192a4f738bd1fb, lando/cli...	4m 34s
sign-n-deploy (macos-12, cli-node18-macos-arm64-caae645cd7f1299b0c7db0dbc8192a4f738bd1fb, lando/c...	2m 18s
sign-n-deploy (ubuntu-22.04, cli-node18-linux-x64-caae645cd7f1299b0c7db0dbc8192a4f738bd1fb, lando...	30s
sign-n-deploy (ubuntu-22.04, cli-node18-linux-arm64-caae645cd7f1299b0c7db0dbc8192a4f738bd1fb, lan...	29s
	4h 21m 47s

Provide feedback