update landing (#25)

* update landing

* update landing

* cleanup dir

* update ToC

Author: mariogiampieri

Assignments/Assignments.md

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+This folder contains assignments for the course. Each assignment is designed to help you practice and apply the concepts learned in the tutorials.

README.md

@@ -5,9 +5,8 @@ Repository for CDP Mapping Systems summer 2025 course
 ## Important Links
 
 - [Syllabus](Syllabus/syllabus.md): this is the source of truth for the course. It contains the schedule, learning objectives, and other important information.
-- [Assignment Descriptions](Assignment_Descriptions): this folder contains the descriptions for all assignments in the course.
-- [Assignments](Assignments): You will submit your assignments here, based on the assignment descriptions.
-- [Tutorial Notebooks](Tutorials): this folder contains the tutorial notebooks for the course. These are the notebooks that we will work through in class.
+- [Assignments](Assignments/Assignments.md): this folder contains the descriptions for all assignments in the course. You will submit your assignments here.
+- [Tutorial Notebooks](Tutorials/Tutorials.md): this folder contains the tutorial notebooks for the course. These are the notebooks that we will work through in class.
 
 ## Getting started
 

Tutorials/05_web_mapping.md

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-# Making a web map (part 1)
+# 03. Making a web map
 
 To this point, we have been working with data in Python and (mostly) visualizing it in our Jupyter notebooks. Now we will take the next step and create a series of files that together comprise a web map that we will then publish. This exercise will be done in two parts. In this first part, we will create the files that will be used to display the map and a basic dataset on a web page. In the second part, we will serve more complex data to our site and publish the map to a web server.
 

Tutorials/Tutorials.md

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+This folder contains the tutorial notebooks for the course. These are the notebooks that we will work through in class.
+Visit the [01. Setting up your environment](Assignments/00_Getting_Started.md) tutorial notebook to set up your programming environment and get started with the course.