Fix URLs

Author: SylvainCorlay

docs/source/computation.rst

@@ -201,5 +201,5 @@ value is missing or not:
 
 .. _pandas: https://pandas.pydata.org
 .. _xarray: https://xarray.pydata.org
-.. _xtensor: https://github.com/QuantStack/xtensor
+.. _xtensor: https://github.com/xtensor-stack/xtensor
 

docs/source/installation.rst

@@ -82,4 +82,4 @@ installation mode you choose, you can add ``xframe`` to your project using cmake
  target_include_directories(your_target PUBLIC ${xframe_INCLUDE_DIRS})
  target_link_libraries(your_target PUBLIC xframe)
 
-.. _xtensor: https://github.com/QuantStack/xtensor
+.. _xtensor: https://github.com/xtensor-stack/xtensor