Update README.md

Author: lvetech

README.md

@@ -2,12 +2,13 @@
 ### *"A motion capture suite made out of light"*. 
 
 **Quick links**: 
+1. A Python script that can be used to capture and save infrared frames from the D400-series Intel RealSense cameras is available [here](code/RealSense/D400_frame_capture.py). Additionally, a companion script that analyzes the metadata file generated by the frame capture script can be found [here](code/RealSense/meta_file_processing.py). The metadata file contains information about each captured frame, including its frame number and timestamp. The companion script identifies any gaps in the sequence of frame numbers (indicating dropped frames), calculates the effective frame rate (FPS), and provides a detailed report on frame continuity and performance. Instructions for these scripts are available [here](code/RealSense/Instructions%20for%20the%20%22D400_frame_capture.py%22.md) and [here](code/RealSense/Instructions%20for%20the%20%22meta_file_processing.py%22.md), respectively.
 
-1. [GitHub] [ALT technology based pulse and respiration monitoring using Intel RealSense cameras.](/code/RealSense/README-RealSense.md) 
+2. [GitHub] [ALT technology based pulse and respiration monitoring using Intel RealSense cameras.](/code/RealSense/README-RealSense.md) 
 
-2. [LinkedIn, you need to be logged in] [ALT technology based non-contact vital signs monitoring on mobile devices: an iPad + Structure Sensor example.](https://www.linkedin.com/pulse/non-contact-vital-signs-monitoring-mobile-devices-ipad-misharin/) 
+3. [LinkedIn, you need to be logged in] [ALT technology based non-contact vital signs monitoring on mobile devices: an iPad + Structure Sensor example.](https://www.linkedin.com/pulse/non-contact-vital-signs-monitoring-mobile-devices-ipad-misharin/) 
 
-3. [Medium] [Articles on Medium related to contactless sleep monitoring using ALT tech.](https://medium.com/@thetechnomage/table-of-contents-80dea07a42e1)
+4. [Medium] [Articles on Medium related to contactless sleep monitoring using ALT tech.](https://medium.com/@thetechnomage/table-of-contents-80dea07a42e1)
 
    A [video](https://youtu.be/EyW02wkQVjU) (YouTube; **Tip**: set the video playback parameters to 1440p60 for this video for better video quality) from one of the [articles on Medium](https://medium.com/@thetechnomage/breathing-in-my-sleep-from-ok-to-ugly-an-example-of-a-mostly-ok-case-c7abd94a75e1) showcasing the use of ALT tech for monitoring respiration during sleep.  **A screenshot from the video**:
    ![An example of using the ALT tech to monitor respiration during sleep](/figures/sleep-monitoring-example.png)