update Readme

Author: Simek

README.md

@@ -1,5 +1,7 @@
 # Yarn Lock Changes
 
+[<sub><img src="https://git.io/J38HP" height="16" /></sub>](#) [<sub><img src="https://git.io/J38dY" height="16" /></sub>](#) [<sub><img src="https://git.io/J38ds" height="16" /></sub>](#) [<sub><img src="https://git.io/J38dt" height="16" /></sub>](#)
+
 Creates a comment inside Pull Request with the human-readable summary of the changes to the `yarn.lock` file. Works in public and private repositories, offers a degree of customization.
 
 ## Usage
@@ -19,7 +21,7 @@ Creates a comment inside Pull Request with the human-readable summary of the cha
 | `collapsibleThreshold` | No | `'25'` | Number of lock changes, which will result in collapsed comment content an addition of summary table. |
 | `failOnDowngrade` | No | `'false'` | When a dependency downgrade is detected, fail the action. |
 | `path` | No | `'yarn.lock'` | Path to the `yarn.lock` file in the repository. Default value points to the file at project root. |
-| `token` | **Yes** | - | GitHub token for the bot, so it can publish a comment in the pull request. |
+| `token` | <ins>**Yes**</ins> | – | GitHub token for the bot, so it can publish a comment in the pull request. |
 | `updateComment` | No | `'true'` | Update the comment on each new commit. If value is set to `'false'`, bot will post a new one on each change. |
 
 ### Workflow Example
@@ -48,10 +50,11 @@ jobs:
 
 ## Preview
 
-### Short list of changes
+### Basic comment appearance
+
+<img alt="basic" src="https://user-images.githubusercontent.com/719641/116818857-c5029d80-ab6d-11eb-8b48-122b851c1d9e.png">
 
-<img alt="Screenshot 2021-04-28 120655" src="https://user-images.githubusercontent.com/719641/116386618-3f53ba80-a81a-11eb-9438-6601d401f880.png">
+### Comment appearance when `collapsibleThreshold` has been reached
 
-### Long list of changes
+<img alt="summary" src="https://user-images.githubusercontent.com/719641/116819012-7efa0980-ab6e-11eb-99f1-15996b6f12b4.png">
 
-<img alt="Screenshot 2021-04-28 115019" src="https://user-images.githubusercontent.com/719641/116385385-09620680-a819-11eb-857c-113f9048d856.png">