docs: copilot comments

Author: imviancagrace

extensions/EXTENSION-PUBLISHING-GUIDE.md

@@ -209,10 +209,10 @@ Edit `extensions/catalog.community.json` and add your extension:
 Add your extension to the Available Extensions table in `extensions/README.md`:
 
 ```markdown
-| Your Extension Name | Brief description of what it does | `category` | Effect | [repo-name](https://github.com/your-org/spec-kit-your-extension) |
+| Your Extension Name | Brief description of what it does | `<category>` | <effect> | [repo-name](https://github.com/your-org/spec-kit-your-extension) |
 ```
 
-**Category** — pick the one that best fits your extension:
+**(Table) Category** — pick the one that best fits your extension:
 
 - `docs` — reads, validates, or generates spec artifacts
 - `code` — reviews, validates, or modifies source code
@@ -222,8 +222,8 @@ Add your extension to the Available Extensions table in `extensions/README.md`:
 
 **Effect** — choose one:
 
-- `Read-only` — produces reports without modifying files
-- `Read+Write` — modifies files, creates artifacts, or updates specs
+- Read-only — produces reports without modifying files
+- Read+Write — modifies files, creates artifacts, or updates specs
 
 Insert your extension in alphabetical order in the table.