Remove dollar sign in command

[kianmeng]

Easier for developer to copy and paste and reduce noise when reading.

See https://cirosantilli.com/markdown-style-guide/#dollar-signs-in-shell-code

[coveralls]

Pull Request Test Coverage Report for Build 7cb1c51dc3e9abaf2c21196a9cdb4e542e7719d3-PR-26

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 88.952%

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Totals
Change from base Build bd57013e08dd77482a8585fd92243755cb22f389:	0.0%
Covered Lines:	314
Relevant Lines:	353

---

💛 - Coveralls

[kianmeng]

🥳 🥳 🥳 🥳 🥳

[coveralls]

Pull Request Test Coverage Report for Build 7cb1c51dc3e9abaf2c21196a9cdb4e542e7719d3-PR-26

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 88.952%

---

Totals
Change from base Build bd57013e08dd77482a8585fd92243755cb22f389:	0.0%
Covered Lines:	314
Relevant Lines:	353

---

💛 - Coveralls