Update README

README.md

@@ -15,14 +15,16 @@ pip install -U paramview \
 The `extra-index-url` parameters are needed since ParamView and ParamDB are not published
 to PyPI yet. If you are using a Python package manager, add
 `https://painterqubits.github.io/paramview/releases` and
-`https://painterqubits.github.io/paramdb/releases` as secondary sources. For example,
-for [Poetry] the commands are:
+`https://painterqubits.github.io/paramdb/releases` as secondary sources before installing.
+For example, for [Poetry] the commands are:
 
 ```
 poetry source add --secondary paramview https://painterqubits.github.io/paramview/releases
 poetry source add --secondary paramdb https://painterqubits.github.io/paramdb/releases
 ```
 
+Then ParamView and ParamDB can be added like any other package.
+
 ## Usage
 
 To launch the ParamView GUI, run:
@@ -32,3 +34,5 @@ paramview <path to ParamDB database file>
 ```
 
 For more options, run `paramview --help`.
+
+[poetry]: https://python-poetry.org