Add Differential Evolution docs and update navigation

Added documentation for Differential Evolution under evolutionary algorithms. Updated mkdocs navigation to reflect new file locations and added the new DE page. Moved GA and utils documentation to new paths for better organization.

Author: roicort

docs/mkdocs.yml

@@ -24,12 +24,13 @@ nav:
           - Overview: bio.md
           - Evolutionary:
               - Overview: evolutionary.md
-              - Genetic Algorithm: ga.md
+              - Genetic Algorithm: evolutionary/ga.md
+              - Differential Evolution: evolutionary/de.md
               - Operators: evolutionary/operators.md
           - Darwin:
               - Overview: darwin.md
               - PSO: darwin/pso.md
-          - Utils: evolutionary/utils.md
+          - Utils: utils.md
       - Gym:
           - Overview: gym.md
           - Mono: gym/mono.md

docs/src/evolutionary/de.md

@@ -0,0 +1,13 @@
+# Differential Evolution
+
+## Example
+```python
+from metazoo.bio.evolutionary.de import DifferentialEvolution
+```
+
+::: metazoo.bio.evolutionary.de
+    handler: python
+    options:
+      show_source: true
+      show_private_members: true
+      show_special_members: true