refactor(kb): revise articles about secret detection in repositories

knowledge base/trufflehog.md

@@ -0,0 +1,70 @@
+# Trufflehog
+
+1. [TL;DR](#tldr)
+1. [Further readings](#further-readings)
+   1. [Sources](#sources)
+
+## TL;DR
+
+<details>
+  <summary>Setup</summary>
+
+```sh
+brew install 'trufflehog'
+docker pull 'trufflesecurity/trufflehog:latest'
+```
+
+</details>
+
+<details>
+  <summary>Usage</summary>
+
+```sh
+trufflehog git 'https://github.com/trufflesecurity/test_keys' --only-verified
+
+docker run --rm -it -v "$PWD:/pwd" 'trufflesecurity/trufflehog:latest' \
+  github --repo 'https://github.com/trufflesecurity/test_keys'
+```
+
+</details>
+
+<!-- Uncomment if used
+<details>
+  <summary>Real world use cases</summary>
+
+```sh
+```
+
+</details>
+-->
+
+## Further readings
+
+- [Website]
+- [Main repository]
+
+Alternatives:
+
+- [`detect-secrets`][detect-secrets]
+- [gitleaks]
+- [`ripsecrets`][ripsecrets]
+
+### Sources
+
+<!--
+  Reference
+  ═╬═Time══
+  -->
+
+<!-- In-article sections -->
+<!-- Knowledge base -->
+[detect-secrets]: detect-secrets.md
+[gitleaks]: gitleaks.md
+[ripsecrets]: ripsecrets.md
+
+<!-- Files -->
+<!-- Upstream -->
+[main repository]: https://github.com/trufflesecurity/trufflehog
+[website]: https://trufflesecurity.com/
+
+<!-- Others -->