Update urls.txt

reducing the number of urls due to runtimeerror.

urls.txt

@@ -1,55 +1,5 @@
 https://changhoonhahn.github.io/stats.html
 https://changhoonhahn.github.io/galaxy.html
 https://changhoonhahn.github.io/cosmo.html
-https://arxiv.org/html/2410.24020v1
-https://arxiv.org/html/2409.19054v1
 https://www.nature.com/articles/s41550-024-02344-2
-https://arxiv.org/html/2312.17459v2
-https://arxiv.org/html/2306.06308v3
-https://ui.adsabs.harvard.edu/abs/2024SPIE13096E..05T/abstract
-https://iopscience.iop.org/article/10.3847/1538-4357/ad4969
-https://arxiv.org/html/2312.08792v2
-https://arxiv.org/abs/2309.12048
-https://arxiv.org/abs/2307.07555
-https://arxiv.org/html/2403.05688v1
-https://arxiv.org/abs/2404.03055
-https://arxiv.org/abs/2310.04503
-https://arxiv.org/html/2405.16593v2
-https://arxiv.org/html/2405.03857v1
-https://arxiv.org/html/2405.02252v1
-https://journals.aps.org/prd/abstract/10.1103/PhysRevD.109.103528#fulltext
-https://iopscience.iop.org/article/10.3847/2041-8213/ad3f1e
-https://arxiv.org/html/2404.07312v4
-https://arxiv.org/html/2404.07282v2
-https://arxiv.org/html/2404.07272v4
-https://arxiv.org/html/2404.04228v1
-https://arxiv.org/html/2404.03621v1
-https://arxiv.org/html/2404.03117v2
-https://arxiv.org/html/2404.03009v2
-https://arxiv.org/html/2404.03008v2
-https://arxiv.org/html/2404.03005v3
-https://arxiv.org/html/2404.03003v4
-https://arxiv.org/html/2404.03002v2
-https://arxiv.org/abs/2404.03001
-https://arxiv.org/html/2404.03000v1
-https://journals.aps.org/prd/abstract/10.1103/PhysRevD.109.083536#fulltext
-https://journals.aps.org/prd/abstract/10.1103/PhysRevD.109.083535#fulltext
-https://journals.aps.org/prd/abstract/10.1103/PhysRevD.109.083534#fulltext
-https://academic.oup.com/mnras/article/529/3/2473/7598219
-https://www.nature.com/articles/s42005-024-01624-7
-https://iopscience.iop.org/article/10.3847/1538-4357/ad34b3
-https://iopscience.iop.org/article/10.3847/1538-4357/ad19c8
-https://iopscience.iop.org/article/10.3847/1538-4357/ad1a13
-https://iopscience.iop.org/article/10.3847/1538-3881/ad0b08
-https://arxiv.org/html/2309.16958v2
-https://arxiv.org/html/2401.12318v1
-https://arxiv.org/html/2306.06309v3
-https://arxiv.org/abs/2310.15246
-https://www.pnas.org/doi/10.1073/pnas.2218810120
-https://ui.adsabs.harvard.edu/abs/2023JCAP...10..016R/abstract
-https://iopscience.iop.org/article/10.3847/2041-8213/acfa03
-https://arxiv.org/abs/2309.15071
-https://academic.oup.com/mnras/article/524/3/3894/7224000
-https://iopscience.iop.org/article/10.3847/1538-4357/ace902
-https://iopscience.iop.org/article/10.3847/1538-4357/ace96e
-https://iopscience.iop.org/article/10.3847/1538-3881/ace0ff
+https://www.pnas.org/doi/10.1073/pnas.2218810120