docs: update contributing.md for exit code 137

[roninjin10]

Description
Error message isn't immediately helpful. Might be a common issue for others.

[changeset-bot]

⚠️ No Changeset found

Latest commit: ba4e637

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[codecov-commenter]

Codecov Report

Merging #2317 (ba4e637) into develop (58ce71f) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #2317   +/-   ##
========================================
  Coverage    80.08%   80.08%           
========================================
  Files           77       77           
  Lines         2460     2460           
  Branches       450      450           
========================================
  Hits          1970     1970           
  Misses         490      490           

Flag	Coverage Δ
contracts	99.29% <ø> (ø)
core-utils	86.77% <ø> (ø)
data-transport-layer	49.72% <ø> (ø)
sdk	55.75% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 58ce71f...ba4e637. Read the comment docs.