Fix link to Pythran manual in the documentation.
Fix link to Pythran manual in the documentation.

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