Add cython and c-compiler to environment.yml - #342

Lexing literal_block "{'User-Agent': 'python-requests/2.28.1',\n 'Accept-Encoding': 'gzip, deflate, br',\n 'Accept': '*/*',\n 'Connection': 'keep-alive',\n 'example-user-id' : 'example-password'}\n" as "json" resulted in an error at token: "'". Retrying in relaxed mode. [misc.highlighting_failure]

Lexing literal_block "{'User-Agent': 'python-requests/2.28.1',\n 'Accept-Encoding': 'gzip, deflate, br',\n 'Accept': '*/*',\n 'Connection': 'keep-alive'}\n" as "json" resulted in an error at token: "'". Retrying in relaxed mode. [misc.highlighting_failure]

Lexing literal_block "{'User-Agent': 'python-requests/2.28.1',\n 'Accept-Encoding': 'gzip, deflate, br',\n 'Accept': '*/*',\n 'Connection': 'keep-alive',\n 'example-user-id' : 'example-password'}\n" as "json" resulted in an error at token: "'". Retrying in relaxed mode. [misc.highlighting_failure]

Lexing literal_block "{'User-Agent': 'python-requests/2.28.1',\n 'Accept-Encoding': 'gzip, deflate, br',\n 'Accept': '*/*',\n 'Connection': 'keep-alive'}\n" as "json" resulted in an error at token: "'". Retrying in relaxed mode. [misc.highlighting_failure]

Lexing literal_block "{'User-Agent': 'python-requests/2.28.1',\n 'Accept-Encoding': 'gzip, deflate, br',\n 'Accept': '*/*',\n 'Connection': 'keep-alive',\n 'example-user-id' : 'example-password'}\n" as "json" resulted in an error at token: "'". Retrying in relaxed mode. [misc.highlighting_failure]

Lexing literal_block "{'User-Agent': 'python-requests/2.28.1',\n 'Accept-Encoding': 'gzip, deflate, br',\n 'Accept': '*/*',\n 'Connection': 'keep-alive'}\n" as "json" resulted in an error at token: "'". Retrying in relaxed mode. [misc.highlighting_failure]

Unknown directive type: '' [myst.directive_unknown]

Branch can be previewed at https://AaltoSciComp.github.io/python-for-scicomp/branch/deps-cython/