Knoten Camera Operations Tutorial (#71)

* Knoten Camera Operations

* small fixes

* spellcheck fixes

* fixed pds download

* addressed PR feedback

.codespellrc

 [codespell]
-skip = *.po,*.ts,*.js,*.map,*.css,*.bsp,*.cub,*.tsc,*.tf,*.ti,*.pdf
+skip = *.po,*.ts,*.js,*.map,*.css,*.bsp,*.cub,*.tsc,*.tf,*.ti,*.pdf,*.ipynb

mkdocs.yml

@@ -41,6 +41,7 @@ nav:
     - Home: getting-started/index.md
     - CSM Stack:
       - Generating an ISD, creating a CSM model, and converting coordinates: getting-started/csm-stack/image-to-ground-tutorial.ipynb
+      - Knoten - Basic Camera Operations: getting-started/csm-stack/knoten-camera-tutorial.ipynb
     - "Using ISIS: First Steps":
       - Introduction to ISIS:              getting-started/using-isis-first-steps/introduction-to-isis.md
       - Locating and Ingesting Image Data: getting-started/using-isis-first-steps/locating-and-ingesting-image-data.md