chore: update docs

README.md

@@ -56,7 +56,8 @@ To generate source files from a `buf` project into another project, use the `@go
  "options": {
  "srcProject": "proto",
  "copyFrom": ["gen/*"],
- "copyTo": "src/gen"
+ "copyTo": "src/gen",
+ "options": "--include-imports"
  }
  },
  "build": {
@@ -72,6 +73,7 @@ The options are as follows:
 * `srcProject`: the project from where to grab the generated sources after running `buf generate`.
 * `copyFrom`: a list of glob patterns to copy from that project, relative to its root.
 * `copyTo`: the destination folder, relative to the target project.
+* `options`: (optional) additional command-line arguments to pass to `buf generate`.
 
 ### Dependency graph