Update README.md

README.md

@@ -10,7 +10,7 @@ Rhapsody is published on [PyPI](https://pypi.org/). To install Rhapsody, please
 ```console
 $ pip install -U prody-rhapsody
 ```
-It might be necessary to manually install the DSSP program, by giving for instance on Linux:
+It might be necessary to manually install the DSSP program, for instance by typing on Linux:
 ```console
 $ sudo apt get dssp
 ```