🧹 chore(badges): update firefox badge style (#239)

* 📝 docs(readme): update firefox badge style

- switch logo from `Firefox` to `firefoxbrowser` with `e66000` logo color

* 🧹 chore: apply suggestion

---------

Co-authored-by: Inter <hi@iinter.me>

README.md

@@ -129,7 +129,7 @@ An extensive list of static Shields.io badges, sorted by category.
 |---------|---------------|
 | [![Arc](https://img.shields.io/badge/Arc-FCBFBD?logo=arc&logoColor=000)](#) | `[![Arc](https://img.shields.io/badge/Arc-FCBFBD?logo=arc&logoColor=000)](#)` |
 | [![Brave](https://img.shields.io/badge/Brave-FB542B?logo=Brave&logoColor=white)](#) | `[![Brave](https://img.shields.io/badge/Brave-FB542B?logo=Brave&logoColor=white)](#)` |
-| [![Firefox](https://img.shields.io/badge/Firefox-FF7139?logo=Firefox&logoColor=white)](#) | `[![Firefox](https://img.shields.io/badge/Firefox-FF7139?logo=Firefox&logoColor=white)](#)` |
+| [![Firefox](https://img.shields.io/badge/Firefox-FF7139?logo=firefoxbrowser&logoColor=white)](#)  | `[![Firefox](https://img.shields.io/badge/Firefox-FF7139?logo=firefoxbrowser&logoColor=white)](#)` |
 | [![Google Chrome](https://img.shields.io/badge/Google%20Chrome-4285F4?logo=GoogleChrome&logoColor=white)](#) | `[![Google Chrome](https://img.shields.io/badge/Google%20Chrome-4285F4?logo=GoogleChrome&logoColor=white)](#)` |
 | [![GNU IceCat](https://img.shields.io/badge/GNU%20IceCat-006CFF?logo=gnu-icecat&logoColor=fff)](#) | `[![GNU IceCat](https://img.shields.io/badge/GNU%20IceCat-006CFF?logo=gnu-icecat&logoColor=fff)](#)` |
 | [![Microsoft Edge](https://custom-icon-badges.demolab.com/badge/Microsoft%20Edge-2771D8?logo=edge-white&logoColor=white)](#) | `[![Microsoft Edge](https://custom-icon-badges.demolab.com/badge/Microsoft%20Edge-2771D8?logo=edge-white&logoColor=white)](#)` |
@@ -1030,3 +1030,4 @@ Here are some people who have contributed to md-badges so far:
 <a href="https://github.com/inttter/md-badges/graphs/contributors">
   <img src="https://contrib.rocks/image?repo=inttter/md-badges" />
 </a>
+