fixed accessing data section

Author: rhuber

docs/api-window-pop-up.png

@@ -7,12 +7,36 @@ For more information, visit the [GEOGLOWS API Documentation](https://geoglows.ec
 ![image](api.png)
 ---
 
-## Using the API in Applications
+## Using the API
 
-The API can be used in applications requiring streamflow data and can be integrated directly into Python workflows. 
+In order to use the API, most functions require you to know your river ID number. You can find more information about finding your river number here: [Finding River Numbers](https://data.geoglows.org/tutorials/finding-river-numbers). You can download the GIS data by VPU through the data catalog or select a stream on the web application and get a river number that way.
+
+### Using the API Website
+
+To use the API website, follow these steps:
+
+**Step 1:** Click the blue **“Get”** button next to the command you are interested in. This opens a window where you can enter your parameters.  
+
+![API Window Pop-up](api-window-pop-up.png)
+
+**Step 2:** Before entering any numbers, click **“Try it out”** to enable input fields. This allows you to enter numbers and select response formats.
+
+**Step 3:** Enter the required information:  
+- A **9-digit river ID number** (also known as a COMID or Link Number) in the `river_id` field. This is required.  
+- Choose either `csv` or `json` from the dropdown menu under `format`. The default selection is `csv`.  
+- For **forecast data queries**, enter a date in `YYYYMMDD` format. If left blank, it will return the most recent forecast.  
 
-The following resources provide guidance:  
-- [Programmatic_Access Colab.ipynb](https://colab.research.google.com/drive/19PiUTU2noCvNGr6r-1i9cv0YMduTxATs?usp=sharing): A walkthrough example of how to use the GEOGLOWS API.  
-- [Programmatic Access 2.0.pdf](https://drive.google.com/file/d/195LGTwbi4-Ho4JW15qZT-PDgUn10qit1/view?usp=sharing): A presentation with additional details.
+![Execute Button](execute-button.png)
 
-These resources demonstrate how to leverage the API effectively for custom applications and analyses.
+**Step 4:** Click the **blue “Execute”** button at the bottom of the screen. The system will process your request and load for a few seconds. Once finished, you will receive a response code along with an option to download the file.  
+
+![API Response](response-api.png)
+
+### Accessing the API Using Python
+
+One of the easiest ways to access the API is through Python. There is a **GeoGLOWS Python package** (documented here: [GeoGLOWS API Documentation](https://geoglows.readthedocs.io/en/latest/api-documentation.html)) that contains commands for basic analysis and querying specific types of data.
+
+This Python notebook provides examples of using the API in Python, as well as utilizing the Python package: [Programmatic_Access Colab.ipynb](https://colab.research.google.com/drive/19PiUTU2noCvNGr6r-1i9cv0YMduTxATs?usp=sharing)
+
+
+The API can be used in applications requiring streamflow data and can be integrated directly into Python workflows.