Added quotes to pip install with optional dependencies

Signed-off-by: Greg von Winckel <[email protected]>

Author: gregvw

README.md

@@ -37,22 +37,22 @@ $ pip install pytuq
 Install additional features as needed:
 * Neural network surrogates
 ```bash
-$ pip install pytuq[nn]
+$ pip install 'pytuq[nn]'
 ```
 
 * Particle swarm optimization
 ```bash
-$ pip install pytuq[optim]
+$ pip install 'pytuq[optim]'
 ```
 
 * All optional features
 ```bash
-pip install pytuq[all]
+$ pip install 'pytuq[all]'
 ```
 
 * Development tools
-```bash 
-pip install pytuq[dev]
+```bash
+$ pip install 'pytuq[dev]'
 ```
 
 ### Installation from Source

pyproject.toml

@@ -50,14 +50,14 @@ dev = [
 ]
 nn = [
     "torch",
-    "quinn @ git+https://github.com/sandialabs/quinn.git"
+    "uqinn"
 ]
 optim = [
     "pyswarms"
 ]
 all = [
     "torch",
-    "quinn @ git+https://github.com/sandialabs/quinn.git",
+    "uqinn",
     "pyswarms"
 ]