Update openminds package description in installation docs

Expanded description of the 'openminds' package to include terminologies.

Author: apdavison

docs/source/installation.rst

@@ -5,7 +5,7 @@ Dependencies
 ############
 
 - `ancpbids` : Python tools for querying BIDS datasets.
-- `openminds` : Python package for the openMINDS metadata models. The package contains all openMINDS schemas as Python classes in addition to schema base classes and utility methods.
+- `openminds` : Python package for the openMINDS metadata models. The package contains all openMINDS schemas as Python classes in addition to schema base classes, utility methods, and the library of openMINDS terminologies.
 - `nameparser` : A simple Python module for parsing human names into their individual components.
 - `pandas` : Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more
 - `PyYAML` : PyYAML is a YAML parser and emitter for Python.