The phrase "improved the text" is both correct and usable in written English.
It can be used to describe the act of making edits to a text to make it better. For example, "The editor improved the text by deleting unnecessary words and re-organizing the structure of the sentences."
I also improved the text description of my items.
Already Mayer has substantially improved the text, by working with Miller to pare away at Quentin's opening speech.
Stoppard, who had subtly smoothed and improved the text throughout rehearsals, found himself overnight with his feet on the upper rungs of Britain's theatrical ladder, where several hobnailed talents were already stamping for primacy.
R. Anand helped to generate Figure 1, and comments by R. Irmis on an early version of the manuscript improved the text.
According to the comments from the reviewers, we mainly made the following changes: 1) We improved the text in many instances as suggested by Prof. Rinkevich.
We are grateful for your comments, as they have improved the text and helped to understand an interdisciplinary problem more properly.
Pebble also revealed in a Kickstarter update last week that it has made improvements behind the scenes to improve the text rendering engine with this firmware, laying the groundwork for its upcoming SDK.
Braidwood adds: "We're strong believers that improving the text input experience is one of the real areas for improvement in iOS, and some of the tweaks that have happened to the autocorrection engine in iOS 7 only act to underline that assertion".
The author also wishes to thank David T. McAuliffe, and his colleague Patrick J. Boner for their suggestions as to how to improve the text linguistically.
In this instance, the tutor is explicit about how the suggested change will improve the text, providing a rationale for why such a change is necessary.
Special thanks to Tobey Curtis and the anonymous reviewers for helpful comments and improving the text.
