Added zip notes to the knowledge base

knowledge base/zip.md

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+# Zip
+
+## TL;DR
+
+```shell
+# recursively compress everything in the current directory to an archive named 'foo.zip'
+zip -r foo .
+
+# recursively compress two folders and a file to an archive named 'bar.zip'
+zip -r bar folder1 folder2 file.txt
+
+# list all files in the archive 'foo.zip' with info
+unzip -Zl foo.zip
+```
+
+## Further readings
+
+- [cheat.sh]
+
+[cheat.sh]: https://cheat.sh/zip