removing links that return 404 error

README.md

@@ -494,7 +494,6 @@ API | Description | Auth | HTTPS | CORS |
 | [Clash of Clans](https://developer.clashofclans.com) | Clash of Clans Game Information | `apiKey` | Yes | Unknown |
 | [Clash Royale](https://developer.clashroyale.com) | Clash Royale Game Information | `apiKey` | Yes | Unknown |
 | [Comic Vine](https://comicvine.gamespot.com/api/documentation) | Comics | No | Yes | Unknown |
-| [Dark Souls 3](https://blog.mugenmonkey.com/2017/09/10/ds3-api.html) | Information about Dark Souls 3 Items | No | Yes | Unknown |
 | [Deck of Cards](http://deckofcardsapi.com/) | Deck of Cards | No | No | Unknown |
 | [Destiny The Game](https://github.com/Bungie-net/api) | Bungie Platform API | `apiKey` | Yes | Unknown |
 | [Dota 2](https://docs.opendota.com/) | Provides information about Player stats , Match stats, Rankings for Dota 2 | `apiKey` | Yes | Unknown |
@@ -526,7 +525,6 @@ API | Description | Auth | HTTPS | CORS |
 | [mod.io](https://docs.mod.io) | Cross Platform Mod API | `apiKey` | Yes | Unknown |
 | [Open Trivia](https://opentdb.com/api_config.php) | Trivia Questions | No | Yes | Unknown |
 | [PandaScore](https://developers.pandascore.co/) | E-sports games and results | `apiKey` | Yes | Unknown |
-| [PlayerUnknown's Battlegrounds](https://pubgtracker.com/site-api) | PUBG Stats | `apiKey` | Yes | Unknown |
 | [Pokéapi](https://pokeapi.co) | Pokémon Information | No | Yes | Unknown |
 | [Pokémon TCG](https://pokemontcg.io) | Pokémon TCG Information | No | Yes | Unknown |
 | [Psychonauts](https://psychonauts-api.netlify.app/) | Psychonauts World Characters Information and PSI Powers | No | Yes | Yes |
@@ -888,7 +886,6 @@ API | Description | Auth | HTTPS | CORS |
 | [arXiv](https://arxiv.org/help/api/user-manual) | Curated research-sharing platform: physics, mathematics, quantitative finance, and economics | No | Yes | Unknown |
 | [CORE](https://core.ac.uk/services#api) | Access the world's Open Access research papers | `apiKey` | Yes | Unknown |
 | [GBIF](https://www.gbif.org/developer/summary) | Global Biodiversity Information Facility | No | Yes | Yes |
-| [hubblesite](https://hubblesite.org/api/documentation/) | Space Telescope News Releases | No | Yes | Unknown |
 | [iDigBio](https://github.com/idigbio/idigbio-search-api/wiki) | Access millions of museum specimens from organizations around the world | No | Yes | Unknown |
 | [inspirehep.net](https://github.com/inspirehep/rest-api-doc) | High Energy Physics info. system | No | Yes | Unknown |
 | [isEven (humor)](https://isevenapi.xyz/) | Check if a number is even | No | Yes | Unknown |
@@ -945,7 +942,6 @@ API | Description | Auth | HTTPS | CORS |
 API | Description | Auth | HTTPS | CORS |
 |---|---|---|---|---|
 | [Best Buy](https://bestbuyapis.github.io/api-documentation/#overview) | Products, Buying Options, Categories, Recommendations, Stores and Commerce | `apiKey` | Yes | Unknown |
-| [Bratabase](https://developers.bratabase.com/) | Database of different types of Bra Sizes | `OAuth` | Yes | Unknown |
 | [Dummy Products](https://dummyproducts-api.herokuapp.com/) | An api to fetch dummy e-commerce products JSON data with placeholder images | `apiKey` | Yes | Yes |
 | [eBay](https://go.developer.ebay.com/) | Sell and Buy on eBay | `OAuth` | Yes | Unknown |
 | [Etsy](https://www.etsy.com/developers/documentation/getting_started/api_basics) | Manage shop and interact with listings | `OAuth` | Yes | Unknown |