upgrade deps, fix paper link, close #157 (#158)

Author: mourner

README.md

@@ -21,7 +21,7 @@ const numDiffPixels = pixelmatch(img1, img2, diff, 800, 600, {threshold: 0.1});
 
 Implements ideas from the following papers:
 
-- [Measuring perceived color difference using YIQ NTSC transmission color space in mobile applications](http://www.progmat.uaem.mx:8080/artVol2Num2/Articulo3Vol2Num2.pdf) (2010, Yuriy Kotsarenko, Fernando Ramos)
+- [Measuring perceived color difference using YIQ NTSC transmission color space in mobile applications](https://www.spiedigitallibrary.org/conference-proceedings-of-spie/8011/80119D/Simple-perceptual-color-space-for-color-specification-and-real-time/10.1117/12.901997.full) (2010, Yuriy Kotsarenko, Fernando Ramos)
 - [Anti-aliased pixel and intensity slope detector](https://www.researchgate.net/publication/234126755_Anti-aliased_Pixel_and_Intensity_Slope_Detector) (2009, Vytautas Vyšniauskas)
 
 ## [Demo](https://observablehq.com/@mourner/pixelmatch-demo)

package-lock.json

@@ -16,9 +16,9 @@
     "pngjs": "^7.0.0"
   },
   "devDependencies": {
-    "eslint": "^9.20.1",
+    "eslint": "^9.27.0",
     "eslint-config-mourner": "^4.0.2",
-    "typescript": "^5.7.3"
+    "typescript": "^5.8.3"
   },
   "scripts": {
     "pretest": "eslint",