Corrects English manuscript, including last part

• Polishes, as prose
• Corrects, as a text
• Fixes, as text
• Tips about the writer making changes for the better
• Rectifies
• Improves editorially
• Corrects, as a manuscript
• Does editing
• Alters (text)

Wiktionary Word definitions in Wiktionary
vb. (en-third-person singular of: emend )