docs: Fix typo in external_C_code.rst (GH-4666)
docs: Fix typo in external_C_code.rst (GH-4666)


cython/cython,cython/cython,scoder/cython,scoder/cython,da-woods/cython,scoder/cython,cython/cython,cython/cython,da-woods/cython,da-woods/cython,scoder/cython,da-woods/cython