CHANGELOG: add additional newlines between versions

Signed-off-by: Benjamin Gilbert <[email protected]>

CHANGELOG.md

@@ -6,6 +6,7 @@
 * examples: Default to ICC profile's default intent, not absolute colorimetric
 * tests: Correctly require pytest ≥ 7.0
 
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 ## Version 1.3.0, 2023-07-22
 
 * Support new soname in OpenSlide ≥ 4.0.0
@@ -21,6 +22,7 @@
 * examples: Correctly import `openslide` on Windows if `OPENSLIDE_PATH` not set
 * tests: Fix `pytest` of installed package from source directory
 
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 ## Version 1.2.0, 2022-06-17
 
 * Drop support for Python \< 3.7
@@ -37,13 +39,15 @@
 * examples: Read OpenSlide DLL path from `OPENSLIDE_PATH` env var on Windows
 * examples: Update OpenSeadragon to 3.0.0
 
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 ## Version 1.1.2, 2020-09-13
 
 * Fix install with setuptools ≥ 46
 * Fix `ImportError` with Python 3.9
 * Fix docs build with Sphinx 2.x
 * Remove `--without-performance` install option
 
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 ## Version 1.1.1, 2016-06-11
 
 * Change default Deep Zoom tile size to 254 pixels
@@ -54,6 +58,7 @@
 * Add test suite
 * examples: Drop support for Internet Explorer \< 9
 
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 ## Version 1.1.0, 2015-04-20
 
 * Improve pixel read performance using optional extension module
@@ -63,21 +68,25 @@
 * examples: Verify at server startup that file was specified
 * examples: Disable pinch zoom outside of viewer
 
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 ## Version 1.0.1, 2014-03-09
 
 * Fix documentation build breakage
 
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 ## Version 1.0.0, 2014-03-09
 
 * Add documentation
 * Switch from distutils to setuptools
 * Declare Pillow dependency in `setup.py` (but still support PIL)
 
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 ## Version 0.5.1, 2014-01-26
 
 * Fix breakage on Python 2.6
 * examples: Fix tile server breakage on classic PIL
 
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 ## Version 0.5.0, 2014-01-25
 
 * Require OpenSlide 3.4.0
@@ -93,6 +102,7 @@
 * examples: Avoid loading smallest Deep Zoom levels
 * examples: Update OpenSeadragon to 1.0.0
 
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 ## Version 0.4.0, 2012-09-08
 
 * Require OpenSlide 3.3.0
@@ -101,6 +111,7 @@
 * Properly report `openslide_open()` errors on OpenSlide 3.3.0
 * Fix library loading on Mac OS X
 
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 ## Version 0.3.0, 2011-12-16
 
 * Fix segfault if properties/associated images accessed after `OpenSlide`
@@ -110,6 +121,7 @@
 * Fix for large JPEG tiles in example Deep Zoom tilers
 * Make example static tiler output self-contained
 
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 ## Version 0.2.0, 2011-09-02
 
 * Initial library release