Guidance may be unclear in the Evaluation section of README.md

[zhuangaoooo]

In the Evaluation section of README.md, the example code may be unclear. For instance, evo_ape tum gt.txt text.txt -va -s is provided without an explanation of text.txt. While gt.txt can be found in each Seq, text.txt cannot be located anywhere within the project.

I speculate that text.txt refers to the output file keyframe.txt. Therefore, I recommend clarifying this information and including an explanation of text.txt in README.md for user-friendliness.