separate manuals and home

docs/index.md

----
-hide:
-  - navigation
-  - toc
----
-
-# Software Manuals
-
-::cards:: cols=3 image-bg
-
-[
-  {
-    "title": "ISIS",
-    "content": "Integrated Software for Imagers and Spectrometers",
-    "url" : https://isis.astrogeology.usgs.gov/,
-    "image" : "https://raw.githubusercontent.com/DOI-USGS/ISIS3/dev/rtd_docs/ISIS_Logo.svg"
-  }, 
-  {
-    "title": "USGSCSM",
-    "content": "USGS Community Sensor Models",
-    "url" : ../docs/software/usgscsm/index.html,
-    "image" : "https://raw.githubusercontent.com/DOI-USGS/usgscsm/main/docs/USGSCSM_Logo.svg"
-  },
-  {
-    "title": "ALE",
-    "content": "Abstraction Library for Ephemerides",
-    "url" : ../docs/software/ale/index.html,
-    "image" : "https://raw.githubusercontent.com/DOI-USGS/ale/main/docs/ALE_Logo.svg"
-  },
-  {
-    "title": "PLIO",
-    "content": "Planetary Input/Output Library",
-    "url" : ../docs/software/plio/index.html,
-    "image" : https://raw.githubusercontent.com/DOI-USGS/plio/main/docs/PLIO_Logo.svg
-  },
-]
-
-::/cards::
+# Home
\ No newline at end of file

docs/manuals/index.md

+# Software Manuals
+
+::cards:: cols=3 image-bg
+
+[
+  {
+    "title": "ISIS",
+    "content": "Integrated Software for Imagers and Spectrometers",
+    "url" : https://isis.astrogeology.usgs.gov/,
+    "image" : "https://raw.githubusercontent.com/DOI-USGS/ISIS3/dev/rtd_docs/ISIS_Logo.svg"
+  }, 
+  {
+    "title": "USGSCSM",
+    "content": "USGS Community Sensor Models",
+    "url" : ../docs/software/usgscsm/index.html,
+    "image" : "https://raw.githubusercontent.com/DOI-USGS/usgscsm/main/docs/USGSCSM_Logo.svg"
+  },
+  {
+    "title": "ALE",
+    "content": "Abstraction Library for Ephemerides",
+    "url" : ../docs/software/ale/index.html,
+    "image" : "https://raw.githubusercontent.com/DOI-USGS/ale/main/docs/ALE_Logo.svg"
+  },
+  {
+    "title": "PLIO",
+    "content": "Planetary Input/Output Library",
+    "url" : ../docs/software/plio/index.html,
+    "image" : https://raw.githubusercontent.com/DOI-USGS/plio/main/docs/PLIO_Logo.svg
+  },
+]
+
+::/cards::

mkdocs.yml

@@ -36,6 +36,7 @@ nav:
   - Getting Started: getting-started/index.md
   - How-To Guides: how-to-guides/index.md
   - Concepts: concepts/index.md
+  - Manuals: manuals/index.md
 
 extra_css:
   - css/neoteroi-mkdocs.css