hub: update categories (#23525)

<!--Delete sections as needed -->

## Description

Updated Hub categories: 

- Added developer tools
- Fixed capitalization to align with UI wording.


https://deploy-preview-23525--docsdocker.netlify.app/docker-hub/repos/manage/information/#available-categories

## Related issues or tickets

ENGDOCS-3042

## Reviews

<!-- Notes for reviewers here -->
<!-- List applicable reviews (optionally @tag reviewers) -->

- [ ] Editorial review
- [ ] Product review

Signed-off-by: Craig Osterhout <[email protected]>

Author: craig-osterhout

content/includes/hub-categories.md

@@ -1,34 +1,36 @@
 The categories include:
 
-- **API Management**: Tools for creating, publishing, analyzing, and securing
+- **API management**: Tools for creating, publishing, analyzing, and securing
   APIs.
-- **Content Management System:** Software applications to create and manage
+- **Content management system:** Software applications to create and manage
   digital content through templates, procedures, and standard formats.
-- **Data Science:** Tools and software to support analyzing data and generating
+- **Data science:** Tools and software to support analyzing data and generating
   actionable insights.
-- **Databases & Storage:** Systems for storing, retrieving, and managing data.
-- **Languages & Frameworks:** Programming language runtimes and frameworks.
-- **Integrations & Delivery:** Tools for Continuous Integration (CI) and
+- **Developer tools:** Software and utilities that assist developers in
+  creating, debugging, maintaining, and supporting applications and systems.
+- **Databases & storage:** Systems for storing, retrieving, and managing data.
+- **Languages & frameworks:** Programming language runtimes and frameworks.
+- **Integration & delivery:** Tools for Continuous Integration (CI) and
   Continuous Delivery (CD).
-- **Internet of Things:** Tools supporting Internet of Things (IoT)
+- **Internet of things:** Tools supporting Internet of Things (IoT)
   applications.
-- **Machine Learning & AI:** Tools and frameworks optimized for artificial
+- **Machine learning & AI:** Tools and frameworks optimized for artificial
   intelligence and machine learning projects, such as pre-installed libraries
   and frameworks for data analysis, model training, and deployment.
-- **Message Queues:** Message queuing systems optimized for reliable, scalable,
+- **Message queues:** Message queuing systems optimized for reliable, scalable,
   and efficient message handling.
 - **Monitoring & Observability:** Tools to track software and system performance
   through metrics, logs, and traces, as well as observability to explore the
   system’s state and diagnose issues.
 - **Networking:** Repositories that support data exchange and connecting
   computers and other devices to share resources.
-- **Operating Systems:** Software that manages all other programs on a computer
+- **Operating systems:** Software that manages all other programs on a computer
   and serves as an intermediary between users and the computer hardware, while
   overseeing applications and system resources.
 - **Security:** Tools to protect a computer system or network from theft,
   unauthorized access, or damage to their hardware, software, or electronic
   data, as well as from service disruption.
-- **Web Servers:** Software to serve web pages, HTML files, and other assets to
+- **Web servers:** Software to serve web pages, HTML files, and other assets to
   users or other systems.
-- **Web Analytics:** Tools to collect, measure, analyze, and report on web data
+- **Web analytics:** Tools to collect, measure, analyze, and report on web data
   and website visitor engagement.