Restructure for documentation (#24)

* update news

* add logo for Hawaii PV Partners

* restructure homepage for documentation

Author: cwhanse

_data/navigation.yml

@@ -1,3 +1,15 @@
+- name: Documentation
+  links:
+  - name: Quickstart
+    link: /quickstart/
+  - name: API reference
+    link: /api_reference/
+  - name: Use Cases
+    link: /usecases/
+
+- name: Access the tool
+  link: /access/
+
 - name: About
   links:
   - name: Team
@@ -7,11 +19,5 @@
   - name: Funding
     link: /about/funding/
 
-- name: Use Cases
-  link: /usecases/
-
-- name: Publications
-  link: /publications/
-
 - name: Participate
   link: /stakeholdercommittee/

_data/presentations.yml

@@ -37,6 +37,7 @@ modeling tools which are primarily designed to predict future performance, rathe
 
 We are beta-testing the Solar Performance Insight tool, and are eager to hear
 your feedback and comments. See above for instructions to get your own account.
+
 Feedback can be emailed to [info@solarperformanceinsight.org](mailto:info@solarperformanceinsight.org), or join the development
 community at [https://github.com/SolarPerformanceInsight/solarperformanceinsight](https://github.com/SolarPerformanceInsight/solarperformanceinsight).