docs: Add logo. Group external links

Author: alhendrickson

docs/cogstack-logo.png

@@ -36,7 +36,7 @@
 
 html_theme = "furo"
 html_static_path = ['_static']
-
+html_logo = "cogstack-logo.png"
 
 intersphinx_mapping = {
     "sphinx": ("https://www.sphinx-doc.org/en/master/", None),

docs/conf.py

@@ -19,9 +19,18 @@ Further in development projects are [here](https://github.com/orgs/CogStack/repo
 
 ```{toctree}
 :hidden:
-
+:maxdepth: 5
 overview/_index
-platform/_index
 
 ```
 
+```{toctree}
+:hidden:
+:caption: CogStack Platform
+MedCAT <https://docs.cogstack.org/projects/nlp>
+MedCAT Trainer <hhttps://medcattrainer.readthedocs.io//>
+NiFi <https://cogstack-nifi.readthedocs.io/en/latest/>
+
+platform/_index
+```
+

docs/index.md

@@ -40,7 +40,7 @@ The latest version of CogStack Pipeline is 1.3.1.
 Please note that CogStack-NiFi project is still under active development with the newest version **0.1.0**.
 :::
 
-### **Apache NiFi – overview**
+### Apache NiFi – overview
 
 *From the official documentation:* Apache NiFi is a dataflow system based on the concepts of flow-based programming. It supports powerful and scalable directed graphs of data routing, transformation, and system mediation logic. NiFi has a web-based user interface for design, control, feedback, and monitoring of dataflows. It is highly configurable along several dimensions of quality of service, such as loss-tolerant versus guaranteed delivery, low latency versus high throughput, and priority-based queuing. NiFi provides fine-grained data provenance for all data received, forked, joined cloned, modified, sent, and ultimately dropped upon reaching its configured end-state.
 

docs/overview/Data pipelines.md

@@ -1,13 +1,8 @@
-# CogStack Platform
+# CogStack Tooling
 
 ```{toctree}
 :maxdepth: 2
 
-MedCAT <https://docs.cogstack.org/projects/nlp>
-MedCAT Trainer <hhttps://medcattrainer.readthedocs.io//>
-NiFi <https://cogstack-nifi.readthedocs.io/en/latest/>
-
-
 observability/_index.md
 
 ```