update pyontoenv, add directions for submodule

CONTRIBUTING.md

@@ -49,7 +49,13 @@ git clone https://github.com/BrickSchema/Brick
 cd Brick
 ```
 
-2. Install the virtual environment and set up dependencies
+2. Use Git submodules to pull in the RealEstateCore ontology
+
+```bash
+git submodule update --init
+```
+
+3. Install the virtual environment and set up dependencies
 
 ```bash
 # creates virtual environment
@@ -65,7 +71,7 @@ pip install -r requirements.txt
 pre-commit install
 ```
 
-3. Run tests to make sure the build is not broken
+4. Run tests to make sure the build is not broken
 
 ```bash
 make test

pyproject.toml

@@ -21,7 +21,7 @@ dev-dependencies = [
     "pytest-xdist[psutil]>=3.6.1",
     "semver>=3.0.2",
     "html5lib>=1.1",
-    "pyontoenv>=0.1.9a6",
+    "pyontoenv>=0.1.9",
     "brickschema[topquadrant]>=0.7.6a2",
     "scipy>=1.13.1",
     "sentence-transformers>=3.0.1",

requirements.txt

@@ -11,4 +11,4 @@ flake8>=6.0
 semver>=2.10.1
 pytest-xdist[psutil]
 html5lib
-pyontoenv>=0.1.8
+pyontoenv>=0.1.9