docs: rename example env file

Author: monok8i

docs/poetry-template/index.md

@@ -64,7 +64,7 @@ A comprehensive template for quickly starting new Python projects with modern de
 
 !!! info "Step 3: Set up environment variables"
     ```bash
-    cp example.env .env.development
+    cp .env.example .env.development
     # Edit .env.development as needed
     ```
 

docs/uv-template/index.md

@@ -64,7 +64,7 @@ A comprehensive template for quickly starting new Python projects with modern de
 
 !!! info "Step 3: Set up environment variables"
     ```bash
-    cp example.env .env.development
+    cp .env.example .env.development
     # Edit .env.development as needed
     ```