docs: add amitmiran137 as a contributor (testing-library#952)

Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>

.all-contributorsrc

@@ -1378,6 +1378,15 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "amitmiran137",
+      "name": "Amit Miran",
+      "avatar_url": "https://avatars.githubusercontent.com/u/47772523?v=4",
+      "profile": "https://github.com/amitmiran137",
+      "contributions": [
+        "infra"
+      ]
     }
   ],
   "repoHost": "https://github.com"

README.md

@@ -311,6 +311,9 @@ Thanks goes to these people ([emoji key][emojis]):
     <td align="center"><a href="https://matan.io"><img src="https://avatars.githubusercontent.com/u/12711091?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Matan Borenkraout</b></sub></a><br /><a href="https://github.com/testing-library/dom-testing-library/commits?author=MatanBobi" title="Code">💻</a></td>
     <td align="center"><a href="https://github.com/simcha90"><img src="https://avatars.githubusercontent.com/u/56388545?v=4?s=100" width="100px;" alt=""/><br /><sub><b>simcha90</b></sub></a><br /><a href="https://github.com/testing-library/dom-testing-library/commits?author=simcha90" title="Code">💻</a></td>
   </tr>
+  <tr>
+    <td align="center"><a href="https://github.com/amitmiran137"><img src="https://avatars.githubusercontent.com/u/47772523?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Amit Miran</b></sub></a><br /><a href="#infra-amitmiran137" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td>
+  </tr>
 </table>
 
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