Update cheatsheets

holehe

@@ -0,0 +1,17 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# holehe
+
+> Check if an email is attached to an account on sites like Twitter, Instagram, Imgur and over 120 others.
+> More information: <https://github.com/megadose/holehe#-cli-example>.
+
+- Show status across all supported websites for the specified email address:
+
+`holehe {{username@example.org}}`
+
+- Show status for only sites where the specified email address is in use:
+
+`holehe {{username@example.org}} --only-used`