add prettierc (#9)

- Adds Prettier configuration file for consistent code formatting.
- Updates README with more details on features, environment variables,
inputs, and development sections.
- Includes instructions on how to choose between ChatGPT API
implementations and how to inspect messages between ChatGPT server.

Author: harjotgill

.prettierrc

@@ -0,0 +1,7 @@
+{
+  "arrowParens": "always",
+  "bracketSameLine": true,
+  "printWidth": 80,
+  "proseWrap": "always",
+  "trailingComma": "all"
+}

README.md

@@ -4,7 +4,11 @@
 
 ## Overview
 
-This [ChatGPT](https://platform.openai.com/docs/guides/chat) based GitHub Action provides a summary, release notes and review of pull requests. The prompts have been tuned for concise response. To prevent excessive notifications, this action can be configured to skip adding review comments when the changes look good for the most part.
+This [ChatGPT](https://platform.openai.com/docs/guides/chat) based GitHub Action
+provides a summary, release notes and review of pull requests. The prompts have
+been tuned for a concise response. To prevent excessive notifications, this
+action can be configured to skip adding review comments when the changes look
+good for the most part.
 
 ### Features
 
@@ -67,22 +71,25 @@ See also: [./action.yml](./action.yml)
 #### Environment variables
 
 - `GITHUB_TOKEN`
-- `CHATGPT_ACCESS_TOKEN`: ChatGPT access token, see also: https://github.com/acheong08/ChatGPT.
+- `CHATGPT_ACCESS_TOKEN`: ChatGPT access token, see also:
+  https://github.com/acheong08/ChatGPT.
 
-  The access token can be easily obtained from https://chat.openai.com/api/auth/session after
-  logging into ChatGPT.
+  The access token can be easily obtained from
+  https://chat.openai.com/api/auth/session after logging into ChatGPT.
 
-- `OPENAI_API_KEY`: use this to authenticate with OpenAI API, official ChatGPT's behavior using
-  `gpt-3.5-turbo`, see also: https://github.com/transitive-bullshit/chatgpt-api
+- `OPENAI_API_KEY`: use this to authenticate with OpenAI API, official ChatGPT's
+  behavior using `gpt-3.5-turbo`, see also:
+  https://github.com/transitive-bullshit/chatgpt-api
 
-Note that `CHATGPT_ACCESS_TOKEN` and `OPENAI_API_KEY` are not both required. Inside this action,
-unofficial ChatGPT is preferred if `CHATGPT_ACCESS_TOKEN` exists. Note that the `CHATGPT_ACCESS_TOKEN`
-can expire frequently, so `OPENAI_API_KEY` should be more convenient if its cost is affordable
-to you.
+Note that `CHATGPT_ACCESS_TOKEN` and `OPENAI_API_KEY` are not both required.
+Inside this action, unofficial ChatGPT is preferred if `CHATGPT_ACCESS_TOKEN`
+exists. Note that the `CHATGPT_ACCESS_TOKEN` can expire frequently, so
+`OPENAI_API_KEY` should be more convenient if its cost is affordable to you.
 
 #### Inputs
 
-- `debug`: Enable debug mode, will show messages and responses between ChatGPT server in CI logs.
+- `debug`: Enable debug mode, will show messages and responses between ChatGPT
+  server in CI logs.
 - `chatgpt_reverse_proxy`: The URL of the ChatGPT reverse proxy
 - `review_comment_lgtm`: Leave comments even the patch is LGTM
 - `path_filters`: Rules to filter files to be reviewed.
@@ -93,11 +100,13 @@ to you.
 
 See: [./action.yml](./action.yml)
 
-Any suggestions or pull requests for improving the prompts are highly appreciated.
+Any suggestions or pull requests for improving the prompts are highly
+appreciated.
 
 ## Developing
 
-> First, you'll need to have a reasonably modern version of `node` handy, tested with node 16.
+> First, you'll need to have a reasonably modern version of `node` handy, tested
+> with node 16.
 
 Install the dependencies
 
@@ -148,33 +157,37 @@ jobs:
           debug: false
 ```
 
-See also: https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request_target
+See also:
+https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request_target
 
 ### Choose the ChatGPT API implementation
 
-The javascript's [chatgpt][2] package provides two implementations of the ChatGPT API:
+The javascript's [chatgpt][2] package provides two implementations of the
+ChatGPT API:
 
 - `ChatGPTAPI`: official ChatGPT using the OpenAI's `gpt-3.5-turbo`.
   - not free
   - requires `OPENAI_API_KEY`
-- `ChatGPTUnofficialProxyAPI`: unofficial ChatGPT models, rely on third-party server and is
-  rate limited.
+- `ChatGPTUnofficialProxyAPI`: unofficial ChatGPT models, rely on third-party
+  server and is rate limited.
   - free
   - requires `CHATGPT_ACCESS_TOKEN`
   - the proxy server is configurable using `chatgpt_reverse_proxy`
 
-If both environment variables `OPENAI_API_KEY` and `CHATGPT_ACCESS_TOKEN` exists, we
-prefer the `ChatGPTUnofficialProxyAPI` implementation.
+If both environment variables `OPENAI_API_KEY` and `CHATGPT_ACCESS_TOKEN`
+exists, we prefer the `ChatGPTUnofficialProxyAPI` implementation.
 
 ### Inspect the messages between ChatGPT server
 
-Set `debug: true` in the workflow file to enable debug mode, which will show the messages
+Set `debug: true` in the workflow file to enable debug mode, which will show the
+messages
 
-[1]: https://github.com/marketplace?type=&verification=&query=chatgpt-pr-reviewer+
+[1]:
+  https://github.com/marketplace?type=&verification=&query=chatgpt-pr-reviewer+
 [2]: https://www.npmjs.com/package/chatgpt
 
 ### Special Thanks
 
 This GitHub Action is based on
-[ChatGPT Action](https://github.com/unsafecoerce/chatgpt-action)
-by [Tao He](https://github.com/sighingnow).
+[ChatGPT Action](https://github.com/unsafecoerce/chatgpt-action) by
+[Tao He](https://github.com/sighingnow).