Update cheatsheets

tldr/cython

@@ -0,0 +1,25 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# cython
+
+> A compiler that converts .pyx files into C or C++ source files.
+> More information: <https://docs.cython.org/en/latest/>.
+
+- Compile into C code:
+
+`cython {{path/to/file}}`
+
+- Compile into C++ code:
+
+`cython --cplus {{path/to/file}}`
+
+- Specify an output file:
+
+`cython {{[-o|--output-file]}} {{path/to/output_file}} {{path/to/file}}`
+
+- Display version:
+
+`cython {{[-V|--version]}}`