docs: add ma-sadeghi as a contributor for code, and bug (#302)

Author: allcontributors[bot]

.all-contributorsrc

@@ -228,6 +228,16 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "ma-sadeghi",
+      "name": "Amin Sadeghi",
+      "avatar_url": "https://avatars.githubusercontent.com/u/14086031?v=4",
+      "profile": "https://ma-sadeghi.github.io",
+      "contributions": [
+        "code",
+        "bug"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -101,6 +101,7 @@ This project started at the [2018 Electrochemical Society (ECS) Hack Week in Sea
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/kevinsmia1939"><img src="https://avatars.githubusercontent.com/u/11407922?v=4?s=100" width="100px;" alt="Kavin Teenakul"/><br /><sub><b>Kavin Teenakul</b></sub></a><br /><a href="https://github.com/ECSHackWeek/impedance.py/commits?author=kevinsmia1939" title="Code">💻</a> <a href="https://github.com/ECSHackWeek/impedance.py/commits?author=kevinsmia1939" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/etrevis"><img src="https://avatars.githubusercontent.com/u/16451399?v=4?s=100" width="100px;" alt="Enrico"/><br /><sub><b>Enrico</b></sub></a><br /><a href="https://github.com/ECSHackWeek/impedance.py/commits?author=etrevis" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://ma-sadeghi.github.io"><img src="https://avatars.githubusercontent.com/u/14086031?v=4?s=100" width="100px;" alt="Amin Sadeghi"/><br /><sub><b>Amin Sadeghi</b></sub></a><br /><a href="https://github.com/ECSHackWeek/impedance.py/commits?author=ma-sadeghi" title="Code">💻</a> <a href="https://github.com/ECSHackWeek/impedance.py/issues?q=author%3Ama-sadeghi" title="Bug reports">🐛</a></td>
     </tr>
   </tbody>
 </table>