Open the file in Google doc
Select the text and and add comments
We correct the changes within 72 hours
How to use Google doc ?
Step 1: Create a document. To create a new document: On your computer, open the Docs home screen at docs.google.com. …
Step 2: Edit and format. To edit a document: …
Step 3: Share & work with others. You can share files and folders with people and choose whether they can view, edit, or comment on them.
How to add comments on Google doc ?
Use comments & action items
You can collaborate with others on Google Docs, Sheets, and Slides to:
Add, edit, reply, or delete comments
Assign tasks and action items