Use Windows-specific instructions in Jupyter guide (#10446)

## Summary

Closes https://github.com/astral-sh/uv/issues/10407.

docs/guides/integration/jupyter.md

@@ -106,12 +106,23 @@ If you need to run Jupyter in a virtual environment that isn't associated with a
 [project](../../concepts/projects/index.md) (e.g., has no `pyproject.toml` or `uv.lock`), you can do
 so by adding Jupyter to the environment directly. For example:
 
-```console
-$ uv venv --seed
-$ uv pip install pydantic
-$ uv pip install jupyterlab
-$ .venv/bin/jupyter lab
-```
+=== "macOS and Linux"
+
+    ```console
+    $ uv venv --seed
+    $ uv pip install pydantic
+    $ uv pip install jupyterlab
+    $ .venv/bin/jupyter lab
+    ```
+
+=== "Windows"
+
+    ```powershell
+    uv venv --seed
+    uv pip install pydantic
+    uv pip install jupyterlab
+    .venv\Scripts\jupyter lab
+    ```
 
 From here, `import pydantic` will work within the notebook, and you can install additional packages
 via `!uv pip install`, or even `!pip install`.
@@ -125,10 +136,13 @@ project, as in the following:
 ```console
 # Create a project.
 $ uv init project
+
 # Move into the project directory.
 $ cd project
+
 # Add ipykernel as a dev dependency.
 $ uv add --dev ipykernel
+
 # Open the project in VS Code.
 $ code .
 ```
@@ -136,7 +150,7 @@ $ code .
 Once the project directory is open in VS Code, you can create a new Jupyter notebook by selecting
 "Create: New Jupyter Notebook" from the command palette. When prompted to select a kernel, choose
 "Python Environments" and select the virtual environment you created earlier (e.g.,
-`.venv/bin/python`).
+`.venv/bin/python` on macOS and Linux, or `.venv\Scripts\python` on Windows).
 
 !!! note
 

docs/guides/projects.md

@@ -177,12 +177,23 @@ $ uv run example.py
 Alternatively, you can use `uv sync` to manually update the environment then activate it before
 executing a command:
 
-```console
-$ uv sync
-$ source .venv/bin/activate
-$ flask run -p 3000
-$ python example.py
-```
+=== "macOS and Linux"
+
+    ```console
+    $ uv sync
+    $ source .venv/bin/activate
+    $ flask run -p 3000
+    $ python example.py
+    ```
+
+=== "Windows"
+
+    ```powershell
+    uv sync
+    source .venv\Scripts\activate
+    flask run -p 3000
+    python example.py
+    ```
 
 !!! note