docs(contribs): add file

add contributors file so that badge doesn't display error

Author: Aetherinox

.all-contributorsrc

@@ -0,0 +1,36 @@
+{
+    "projectName": "KeeWeb",
+    "projectOwner": "KeeWeb",
+    "repoType": "github",
+    "repoHost": "https://github.com",
+    "files": ["README.md"],
+    "imageSize": 40,
+    "commit": true,
+    "commitConvention": "angular",
+    "contributors": [
+        {
+            "login": "antelle",
+            "name": "Antelle",
+            "avatar_url": "https://avatars.githubusercontent.com/u/633557?v=4",
+            "profile": "https://gitlab.com/antelle",
+            "contributions": ["code", "projectManagement", "fundingFinding"]
+        },
+        {
+            "login": "Aetherinox",
+            "name": "Aetherinox",
+            "avatar_url": "https://avatars.githubusercontent.com/u/118329232?v=4",
+            "profile": "https://gitlab.com/Aetherinox",
+            "contributions": ["code", "projectManagement", "fundingFinding"]
+        },
+        {
+            "login": "HarlemSquirrel",
+            "name": "HarlemSquirrel",
+            "avatar_url": "https://avatars.githubusercontent.com/u/6445815?v=4",
+            "profile": "https://gitlab.com/HarlemSquirrel",
+            "contributions": ["code", "projectManagement"]
+        }
+    ],
+    "contributorsPerLine": 7,
+    "linkToUsage": false,
+    "skipCi": true
+}