Add all contributors

.all-contributorsrc

@@ -0,0 +1,20 @@
+{
+    "projectName": "firefox_decrypt",
+    "projectOwner": "unode",
+    "files": ["CONTRIBUTORS.md"],
+    "commitConvention": "gitmoji",
+    "contributorsSortAlphabetically": true,
+    "contributors": [
+        "AlisterAmo",
+        "Anthropohedron",
+        "Gounlaf",
+        "NeffIsBack",
+        "criztovyl",
+        "eseifert",
+        "jneves",
+        "sedrubal",
+        "tennox",
+        "unode",
+        "yermulnik"
+    ]
+}

README.md

@@ -1,6 +1,8 @@
 ### Firefox Decrypt
 
 ![GitHub Actions status](https://github.com/unode/firefox_decrypt/actions/workflows/main.yml/badge.svg)
+[![Gitmoji badge](https://img.shields.io/badge/gitmoji-%20😜%20😍-FFDD67.svg?style=flat-square)](https://gitmoji.dev)
+[![All Contributors](https://img.shields.io/github/all-contributors/unode/firefox_decrypt?color=ee8449&style=flat-square)](#contributors)
 
 As of 1.0.0 Python 3.9+ is required. Python 2 is no longer supported.
 If you encounter a problem, try the latest [release](https://github.com/unode/firefox_decrypt/releases) or check open issues for ongoing work.
@@ -208,6 +210,9 @@ If tests continue to fail, re-run with `./run_all -v` then please file a bug rep
 
 It is much appreciated.
 
+### Contributors
+
+See [CONTRIBUTORS.md](CONTRIBUTORS.md) for a complete list of contributions
 
 ### Spin-off, derived and related works