Update docs/doc_templates/autocorrelation.md
@@ -52,7 +52,7 @@ It's also possible to calculate the autocorrelation of samples in Python.
{% snippet PythonScalarAutocorrelation %}
```
-If sampling `ndarray`'s in Python. The index on which to calculate the autocorrelation can be specified
+If sampling `ndarray`s in Python, the index on which to calculate the autocorrelation can be specified
as a tuple.
```python
