Minor edits

Signed-off-by: Natalie Arellano <[email protected]>

Author: Natalie Arellano

content/docs/reference/spec/migration/platform-api-0.9-0.10.md

@@ -77,7 +77,7 @@ Note: image extensions are not supported for Windows container images.
     * The new run image will be written to `analyzed.toml`
 * Invoke `restorer` with a new required argument (when using extensions): `-build-image`, a tag reference to the builder image in use
   * A new volume mount is introduced with target `/kaniko`; this volume must be writable by the `restorer` user
-* Invoke `extender` (new lifecycle binary) as _root_ instead of `builder`; the extender will use kaniko to apply the relevant generated Dockerfiles to the build image and then drop privileges to run the `build` phase
+* Invoke `extender` (new lifecycle binary) as the `root` user, instead of `builder`; the extender will use kaniko to apply the relevant generated Dockerfiles to the build image and then drop privileges to run the `build` phase
   * The same volume from `restore` should be mounted at `/kaniko`
 * Invoke `exporter` as usual
   * If Dockerfiles for customizing the run image were output by extensions, the `exporter` will use the run image designated by the extension process