wikilinks should be ignored in code blocks

[rvalien]

how to reproduce:
add code section

```python
import pandas as pd

df = pd.read_pickle('cars.pickle')
brands = df[['brand_name', "brand_code"]]
```

result:

[redimp]

Confirmed. No so nice workaround: Without the lang tag it works:

```
import pandas as pd

df = pd.read_pickle('cars.pickle')
brands = df[['brand_name', "brand_code"]]
```

[redimp]

Digging into this .. it's not the wikilink .. its something else. Better workaround, use double quotes:

```python=
import pandas as pd

df = pd.read_pickle('cars.pickle')
brands = df[["brand_name", "brand_code"]]
```

[redimp]

Released in v2.9.1.