modifies sponsor wording, adds individual sponsors (#348)

* modifies sponsor wording, adds individual sponsors

* remove individual sponsors

Author: solegalli

docs/about/about.rst

@@ -134,4 +134,4 @@ maintaining the project.
 ..........
 
 |
-|
+|

docs/contribute/contribute_other.rst

@@ -38,7 +38,7 @@ Donate
 ------
 
 If Feature-engine is helping your organization save money, time, effort, and frustrations,
-and be more productive, consider `sponsoring the maintainer <https://github.com/sponsors/solegalli>`_.
+and be more productive, consider `sponsoring us <https://github.com/sponsors/solegalli>`_.
 This is a great way to show your appreciation. Thank you!
 
 For all of this, get in touch with the maintainer via `LinkedIn <https://www.linkedin.com/in/soledad-galli/>`_.

docs/contribute/index.rst

@@ -31,7 +31,7 @@ There are many ways to contribute to Feature-engine:
 - Improve our documentation, i.e., fix typos, improve grammar, or add more code examples.
 - Write a blog, tweet, or share our project with others.
 - Use Feature-engine in your lectures if you teach
-- `Sponsor the maintainer <https://github.com/sponsors/solegalli>`_.
+- `Sponsor us <https://github.com/sponsors/solegalli>`_.
 
 With plenty of ways to get involved, we would be happy for you to support the project.
 You only need to abide by the principles of openness, respect, and consideration of

docs/index.rst

@@ -222,7 +222,7 @@ For more details on how to contribute check the contributing page. Click on the
 Donate
 ~~~~~~
 
-`Sponsor the maintainer <https://github.com/sponsors/solegalli>`_ to support her continue expanding
+`Sponsor us <https://github.com/sponsors/solegalli>`_ to support us continue expanding
 Feature-engine.
 
 Open Source