docs: add contributors and acknowledgements section to landing page

Add dedicated section on docs landing page linking to:
- GitHub contributors list
- Citation/Zenodo for research use
- Project partners and supporters

Makes it easy for users to discover and credit CodeCarbon contributors.

Author: davidberenstein1957

docs/how-to/cloud-api.md

@@ -62,4 +62,3 @@ save_to_api = true
 ## View Your Results
 
 Once your runs complete, visit the [CodeCarbon dashboard](https://dashboard.codecarbon.io/) to see your results. For more visualization options, see the [visualization guide](visualize.md).
-

docs/index.md

@@ -78,3 +78,11 @@ A single datacenter can consume large amounts of energy to run computing code. A
 | [Methodology](explanation/methodology.md) | How emissions are calculated |
 | [EcoLogits](https://ecologits.ai/latest/?utm_source=codecarbon&utm_medium=docs) | Track emissions from GenAI API calls |
 | [Discord Community](https://discord.gg/GS9js2XkJR) | Chat with us and the community |
+
+## Contributors & Acknowledgements
+
+CodeCarbon is built by a community of open-source contributors and supported by organizations committed to sustainable computing.
+
+- **[Contributors](https://github.com/mlco2/codecarbon/graphs/contributors)** - See everyone who has contributed to the project
+- **[Citation](https://zenodo.org/records/11171501)** - Cite CodeCarbon in your research
+- **[Partners](https://github.com/mlco2/codecarbon#partners)** - The organizations supporting this work

docs/stylesheets/extra.css

@@ -39,15 +39,23 @@
 }
 
 [data-md-color-scheme="default"] .md-header .md-search__button,
-[data-md-color-scheme="default"] .md-search__button,
+[data-md-color-scheme="default"] .md-search__button {
+  color: #0d1f0d !important;
+  background-color: rgba(0, 0, 0, 0.08) !important;
+}
+
 [data-md-color-scheme="slate"] .md-header .md-search__button,
 [data-md-color-scheme="slate"] .md-search__button {
   color: #ffffff !important;
   background-color: rgba(255, 255, 255, 0.15) !important;
 }
 
 [data-md-color-scheme="default"] .md-header .md-search__input,
-[data-md-color-scheme="default"] .md-search__input,
+[data-md-color-scheme="default"] .md-search__input {
+  color: #0d1f0d !important;
+  background-color: rgba(0, 0, 0, 0.08) !important;
+}
+
 [data-md-color-scheme="slate"] .md-header .md-search__input,
 [data-md-color-scheme="slate"] .md-search__input {
   color: #ffffff !important;