Update cheatsheets

ocamlc

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# ocamlc
+
+> The OCaml bytecode compiler.
+> Produces executables runnable by the OCaml interpreter.
+> More information: <https://ocaml.org>.
+
+- Create a binary from a source file:
+
+`ocamlc {{path/to/source_file.ml}}`
+
+- Create a named binary from a source file:
+
+`ocamlc -o {{path/to/binary}} {{path/to/source_file.ml}}`
+
+- Automatically generate a module signature (interface) file:
+
+`ocamlc -i {{path/to/source_file.ml}}`