Update README.md [skip ci]

Author: timheuer

README.md

@@ -7,18 +7,41 @@
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 # GitHub Actions for Visual Studio
+
 The GitHub Actions extension lets you manage your workflows, view the workflow run history, and edit GitHub secrets.
 
 ![image](https://github.com/timheuer/GitHubActionsVS/assets/4821/43e011c8-2ac1-4ae9-aa95-747fe033e5c6)
 
 ## Features
-TBD
+
+This extension mainly serves to provide a quick way to see the GitHub Actions for your open solution if identified as a GitHub.com repo. To view these, either right click on the solution or project in Solution Explorer and click "GitHub Actions" from the menu:
+
+![image](https://github.com/timheuer/GitHubActionsVS/assets/4821/ab61f0b9-d82d-41f4-bc29-cfc7507fea7f)
+
+If an active solution exists and it is both a git and GitHub.com repository, the window will start querying the repository for Actions information on runs and secrets. A progress bar will be shown then you can expand to see the results.
 
 ### View workflow run history
-TBD
 
-### Edit GitHub secrets
-TBD
+To view the history simply select a run and navigate through the tree view to see details. You can double-click on a leaf node to launch to the log point on the repo to view the rich log output.
+
+> Not yet implemented: The ability to [monitor a workflow run while in process](https://github.com/timheuer/GitHubActionsVS/issues/15).
+
+If you close and open a new project the window will be refreshed to represent the current state.
+
+#### Limit run count retrieval
+By default a maximum of last 10 runs are retrieved. You can change this in the `Tools...Options` of Visual Studio and set an integer value.
+
+![image](https://github.com/timheuer/GitHubActionsVS/assets/4821/588fc711-1c02-4268-a9a4-32411028f213)
+
+
+#### Manually refresh
+You can manually refresh the view by clicking the refresh icon in the toolbar:
+
+![image](https://github.com/timheuer/GitHubActionsVS/assets/4821/865d424d-29e1-40e8-96c4-1eeffb458682)
+
+### Edit GitHub secrets (Coming soon...)
+
+Update or Add repo secrets directly from within Visual Studio.
 
 ## Contributors
 
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-
 ## Requirements
+
 Visual Studio 2022 17.6 or later is required to use this extension.  Additionally since GitHub Actions is obviously a feature of GitHub, you will need to be attached to an active GitHub.com repository.
 
 ## Code of Conduct
+
 This project has adopted the [.NET Foundation Code of Conduct](https://dotnetfoundation.org/code-of-conduct). For more information see the Code of Conduct itself or contact project maintainers with any additional questions or comments or to report a violation.