Add pip upgrade step to README
@@ -104,9 +104,11 @@ For detailed installation instructions, see the
### pip
Using pip, spaCy releases are available as source packages and binary wheels (as
-of `v2.0.13`).
+of `v2.0.13`). Before you install spaCy and its dependencies, make sure that
+your `pip`, `setuptools` and `wheel` are up to date.
```bash
+pip install -U pip setuptools wheel
pip install spacy
```
