prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  Incorrect description of an example
  https://altair-viz.github.io/gallery/scatter_linked_brush.html
  
  The title of the page says "Faceted Scatter Plot with Linked Brushing".
  But the example is a concatenated view, not a faceted view. 
  (The data points are shown twice in the visualization, not split by a category.) 
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `altair/vegalite/v2/examples/scatter_linked_brush.py`
  Content:
  ```
  1 """
  2 Faceted Scatter Plot with Linked Brushing
  3 -----------------------------------------
  4 This is an example of using an interval selection to control the color of
  5 points across multiple facets.
  6 """
  7 # category: interactive charts
  8 import altair as alt
  9 from vega_datasets import data
  10 
  11 cars = data.cars()
  12 
  13 brush = alt.selection(type='interval', resolve='global')
  14 
  15 base = alt.Chart(cars).mark_point().encode(
  16     y='Miles_per_Gallon',
  17     color=alt.condition(brush, 'Origin', alt.ColorValue('gray'))
  18 ).add_selection(
  19     brush
  20 ).properties(
  21     width=250,
  22     height=250
  23 )
  24 
  25 base.encode(x='Horsepower') | base.encode(x='Acceleration')
  26
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/altair/vegalite/v2/examples/scatter_linked_brush.py b/altair/vegalite/v2/examples/scatter_linked_brush.py
  --- a/altair/vegalite/v2/examples/scatter_linked_brush.py
  +++ b/altair/vegalite/v2/examples/scatter_linked_brush.py
  @@ -1,8 +1,8 @@
   """
  -Faceted Scatter Plot with Linked Brushing
  ------------------------------------------
  +Multi-panel Scatter Plot with Linked Brushing
  +---------------------------------------------
   This is an example of using an interval selection to control the color of
  -points across multiple facets.
  +points across multiple panels.
   """
   # category: interactive charts
   import altair as alt
  
verification_info: {"golden_diff": "diff --git a/altair/vegalite/v2/examples/scatter_linked_brush.py b/altair/vegalite/v2/examples/scatter_linked_brush.py\n--- a/altair/vegalite/v2/examples/scatter_linked_brush.py\n+++ b/altair/vegalite/v2/examples/scatter_linked_brush.py\n@@ -1,8 +1,8 @@\n \"\"\"\n-Faceted Scatter Plot with Linked Brushing\n------------------------------------------\n+Multi-panel Scatter Plot with Linked Brushing\n+---------------------------------------------\n This is an example of using an interval selection to control the color of\n-points across multiple facets.\n+points across multiple panels.\n \"\"\"\n # category: interactive charts\n import altair as alt\n", "issue": "Incorrect description of an example\nhttps://altair-viz.github.io/gallery/scatter_linked_brush.html\r\n\r\nThe title of the page says \"Faceted Scatter Plot with Linked Brushing\".\r\nBut the example is a concatenated view, not a faceted view. \r\n(The data points are shown twice in the visualization, not split by a category.) \n", "before_files": [{"content": "\"\"\"\nFaceted Scatter Plot with Linked Brushing\n-----------------------------------------\nThis is an example of using an interval selection to control the color of\npoints across multiple facets.\n\"\"\"\n# category: interactive charts\nimport altair as alt\nfrom vega_datasets import data\n\ncars = data.cars()\n\nbrush = alt.selection(type='interval', resolve='global')\n\nbase = alt.Chart(cars).mark_point().encode(\n    y='Miles_per_Gallon',\n    color=alt.condition(brush, 'Origin', alt.ColorValue('gray'))\n).add_selection(\n    brush\n).properties(\n    width=250,\n    height=250\n)\n\nbase.encode(x='Horsepower') | base.encode(x='Acceleration')\n", "path": "altair/vegalite/v2/examples/scatter_linked_brush.py"}], "after_files": [{"content": "\"\"\"\nMulti-panel Scatter Plot with Linked Brushing\n---------------------------------------------\nThis is an example of using an interval selection to control the color of\npoints across multiple panels.\n\"\"\"\n# category: interactive charts\nimport altair as alt\nfrom vega_datasets import data\n\ncars = data.cars()\n\nbrush = alt.selection(type='interval', resolve='global')\n\nbase = alt.Chart(cars).mark_point().encode(\n    y='Miles_per_Gallon',\n    color=alt.condition(brush, 'Origin', alt.ColorValue('gray'))\n).add_selection(\n    brush\n).properties(\n    width=250,\n    height=250\n)\n\nbase.encode(x='Horsepower') | base.encode(x='Acceleration')\n", "path": "altair/vegalite/v2/examples/scatter_linked_brush.py"}]}