[docs] add José Morales to repo maintainers (#4563)

* Update CODEOWNERS

* Update FAQ.rst

.github/CODEOWNERS

@@ -33,8 +33,8 @@ R-package/    @Laurae2 @jameslamb
 python-package/    @StrikerRUS @chivee @wxchan @henry0312 @shiyu1994 @jameslamb
 
 # Dask integration
-python-package/lightgbm/dask.py    @jameslamb
-tests/python_package_test/test_dask.py    @jameslamb
+python-package/lightgbm/dask.py    @jameslamb @jmoralez
+tests/python_package_test/test_dask.py    @jameslamb @jmoralez
 
 # helpers
 helpers/    @StrikerRUS @guolinke

docs/FAQ.rst

@@ -26,6 +26,7 @@ You may also ping a member of the core team according to the relevant area of ex
 -  `@btrotta <https://github.com/btrotta>`__ **Belinda Trotta** (C++ code)
 -  `@Laurae2 <https://github.com/Laurae2>`__ **Damien Soukhavong** (R-package)
 -  `@jameslamb <https://github.com/jameslamb>`__ **James Lamb** (R-package / Dask-package)
+-  `@jmoralez <https://github.com/jmoralez>`__ **José Morales** (Dask-package)
 -  `@wxchan <https://github.com/wxchan>`__ **Wenxuan Chen** (Python-package)
 -  `@henry0312 <https://github.com/henry0312>`__ **Tsukasa Omoto** (Python-package)
 -  `@StrikerRUS <https://github.com/StrikerRUS>`__ **Nikita Titov** (Python-package)