docs: add @DmitryEfimenko as a contributor

Author: DmitryEfimenko

.all-contributorsrc

@@ -9,6 +9,19 @@
   "imageSize": 100,
   "commit": true,
   "commitConvention": "angular",
-  "contributors": [],
+  "contributors": [
+    {
+      "login": "DmitryEfimenko",
+      "name": "Dmitry A. Efimenko",
+      "avatar_url": "https://avatars0.githubusercontent.com/u/2098175?v=4",
+      "profile": "https://github.com/DmitryEfimenko/",
+      "contributions": [
+        "code",
+        "design",
+        "doc",
+        "ideas"
+      ]
+    }
+  ],
   "contributorsPerLine": 7
 }

README.md

@@ -184,7 +184,7 @@ Just include something similar to the following in your global css file:
 - `test:lib:headless` - Runs tests in headless mode with Chrome
 - `release` - Releases a new version. This will bump the library's version, and update the `CHANGE_LOG` file based on the commit message
 - `release:first` - Creates the first release
-- `commit` - Creates a new commit message based on Angular commit messgae convention
+- `commit` - Creates a new commit message based on Angular commit message convention
 - `contributors:add` - Adds a new contributor to the `README` file
 
 ## License
@@ -198,6 +198,12 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
 <!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
 <!-- prettier-ignore-start -->
 <!-- markdownlint-disable -->
+<table>
+  <tr>
+    <td align="center"><a href="https://github.com/DmitryEfimenko/"><img src="https://avatars0.githubusercontent.com/u/2098175?v=4" width="100px;" alt=""/><br /><sub><b>Dmitry A. Efimenko</b></sub></a><br /><a href="https://github.com/ngspot/ngs-errors/commits?author=DmitryEfimenko" title="Code">💻</a> <a href="#design-DmitryEfimenko" title="Design">🎨</a> <a href="https://github.com/ngspot/ngs-errors/commits?author=DmitryEfimenko" title="Documentation">📖</a> <a href="#ideas-DmitryEfimenko" title="Ideas, Planning, & Feedback">🤔</a></td>
+  </tr>
+</table>
+
 <!-- markdownlint-enable -->
 <!-- prettier-ignore-end -->