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 ## Description
 
-The goal of this script is to create figures showing the averaged coverage of transcripts in different conditions from RNA-seq data.
+The goal of this script is to create figures showing the average coverage of transcripts in different conditions from Ribo-seq data.
 
 
 # Prerequisites
@@ -92,7 +92,7 @@ The columns must be separated by a tablulation.
 |:--------------------:|:-----------------------------------------------------:| :-:|:-:|
 | --normalization      | The normalization method to apply on the transcript. See deeptools documentation to chose the normalization method (it can take the following values RPKM, CPM, BPM, RPGC, None) | string | CPM |
 | --pool_file      | A file used to pool samples together the number of categories of transcripts you want to create. You can enter `None` if you don't want to pull samples together| File, string | None |
-| --transcript_group_number      | The number of transcript groups you want to have. One coverage figure will be created for each transcript group | int | 5 |
+| --transcript_group_number      | The number of transcript groups you want to have. One coverage figure will be created for each transcript group. A group of transcript corresponds to transcripts with similar size. | int | 5 |
 | --bin_numbers      | The number of bin we want to use for each category of transcript. You can entrer '-1' to automatically compute a number of bins a category of transcript. If you have 3 group of transcript and you whant to set 20 bins for the smallest transcripts, 30 bins for the medium transcripts and 40 bins for the largest you can entrer | string | "-1" |
 | --trim      | The proportion of the smallest and largest transcripts to remove. You can enter 0.025 to remove 2.5% of the smallest and largest transcript or 0 to not remove anything | float | 0.025
 | --project_name      | Name of the project, used in result file names | string | metatranscript_analysis |