Setup git-secret

This morning I'm attempting to secure my monorepo. How?

- `git secret`:  DONE: To version-control sensitive data
- `git secrets`: TODO: Lint code for sensitive data

I will probably update the CI to call `git secrets --scan` or some similar
command to fail when that exists non-zero. I have much to learn, but doing is
the best way to learn it.

1 files changed, 0 insertions, 0 deletions

diff --git a/.gitsecret/paths/mapping.cfg b/.gitsecret/paths/mapping.cfg
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/.gitsecret/paths/mapping.cfg