Update index.md add PWHS in collection vietnam

[minhnq1-apero]

Please confirm this pull request meets the following requirements:

• I followed the contributing guidelines: https://github.com/github/explore/blob/main/CONTRIBUTING.md.
• This change is not self-promotion.

Which change are you proposing?

• Suggesting edits to an existing topic or collection
• Curating a new topic or collection
• Something that does not neatly fit into the binary options above

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Editing an existing topic or collection

I'm suggesting these edits to an existing topic or collection:

• Image (and my file is *.png, square, dimensions 288x288, size <= 75 kB)
• Content (and my changes are in index.md)

Please replace this line with an explanation of why you think these changes should be made.

Curating a new topic or collection

• I've formatted my changes as a new folder directory, named for the topic or collection as it appears in the URL on GitHub (e.g. https://github.com/topics/[NAME] or https://github.com/collections/[NAME])
• My folder contains a *.png image (if applicable) and index.md
• All required fields in my index.md conform to the Style Guide and API docs: https://github.com/github/explore/tree/main/docs

Please replace this line with an explanation of why you think this topic or collection should be curated.

Something that does not neatly fit into the binary options above

• My suggested edits are not about an existing topic or collection, or at least not a single one
• My suggested edits are not about curating a new topic or collection, or at least not a single one
• My suggested edits conform to the Style Guide and API docs: https://github.com/github/explore/tree/main/docs

PWHS is an org build awesome opensource app in vietnam I think it should be have in collection

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Please note: we will close your PR without comment if you do not check the boxes above and provide ALL requested information.

[github-actions]

Maintainer triage

Collection made-in-vietnam

Item	Stars	Last push	Owner type	Notes
mlbvn	–	–	–	invalid format
VinAIResearch	–	–	–	invalid format
vietai	–	–	–	invalid format
webuild-community	–	–	–	invalid format
pass-with-high-score	–	–	–	invalid format
chiphuyen/machine-learning-systems-design	10,440	2023-04-15	User	–
tiepvupsu/ebookMLCB	1,848	2024-07-05	User	–
holistics/dbml	3,641	2026-06-29	Organization	–
google/edward2	709	2026-01-09	Organization	–
vncorenlp/VnCoreNLP	669	2023-02-12	User	–
tink-crypto/tink	13,545	2024-04-17	Organization	archived
blei-lab/edward	4,841	2024-03-18	Organization	–
ZuzooVn/machine-learning-for-software-engineers	28,802	2024-06-11	User	–
chiphuyen/ml-interviews-book	4,654	2025-03-21	User	–
huytd/kanban-app	1,800	2018-05-09	User	–
undertheseanlp/underthesea	1,746	2026-06-29	Organization	–
tiepvupsu/tabml_book	43	2021-08-17	User	–
hoanhan101/algo	3,680	2020-11-03	User	–
vinbigdata-medical/vindr-lab	374	2021-08-10	Organization	–
vanhuyz/CycleGAN-TensorFlow	1,189	2021-07-29	User	–
TablePlus/TablePlus	3,803	2026-03-02	Organization	–
khangich/machine-learning-interview	12,637	2023-08-31	User	–
owenashurst/agar.io-clone	2,963	2025-04-30	User	–
opencardev/crankshaft	2,618	2026-06-20	Organization	–
binhnguyennus/awesome-scalability	72,117	2026-01-04	User	–
hoanhan101/ultimate-go	14,913	2025-06-15	User	–
ProxymanApp/Proxyman	6,868	2026-06-28	Organization	–
bangoc123/learn-machine-learning-in-two-months	2,143	2022-10-21	User	–
phuocng/csslayout	8,058	2023-11-22	User	–
0x2c7/ruby_jard	841	2023-01-18	User	archived
phuocng/1loc	6,738	2024-06-23	User	–
BambooEngine/ibus-bamboo	1,480	2026-05-19	Organization	–
pass-with-high-score	–	–	–	invalid format
pass-with-high-score/blockads-android	1,215	2026-06-13	Organization	–
pass-with-high-score/universal-installer	871	2026-06-30	Organization	–
pass-with-high-score/ANeko	556	2026-04-05	Organization	–