Update cheatsheets

fossil

@@ -0,0 +1,26 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# fossil
+
+> Distributed version control system.
+> Some subcommands such as `fossil commit` have their own usage documentation.
+> More information: <https://fossil-scm.org/>.
+
+- Execute a Fossil subcommand:
+
+`fossil {{subcommand}}`
+
+- Display help:
+
+`fossil help`
+
+- Display help for a specific subcommand (like `add`, `commit`, etc.):
+
+`fossil help {{subcommand}}`
+
+- Display version:
+
+`fossil version`