typo

README.md

@@ -23,7 +23,7 @@ Get the released version from CRAN:
 
 ```r
 ## include BioC repo for dependencies
-setRepositories(ind=1:2) 
+setRepositories(ind=1:2)
 install.packages("ggimage")
 ```
 
@@ -37,26 +37,26 @@ devtools::install_github("GuangchuangYu/ggimage")
 
 ## Related Packages
 
-| package                                                  |purpose                       |base plot| ggplot2| geom layer<sup>&</sup>| aes mapping<sup>^</sup>|
+| package                                                  |purpose        |base plot| ggplot2| geom layer<sup>&</sup>| aes mapping<sup>^</sup>|
 | ---------------------------------------------------------| ------- | ------ |---------- |--------------- | ----------------- |
-| [CatterPlots](https://github.com/Gibbsdavidl/CatterPlots)| cats                         | Y           |             |                    |                       |
-| [rphylopic](https://github.com/sckott/rphylopic)         | phylopic                      | Y           | Y          | Y & N<sup>*</sup>   |                       |
-| [emoGG](https://github.com/dill/emoGG)                   | emoji                         |             | Y          | Y                 |                       |
-| [ggflags](https://github.com/baptiste/ggflags)           | flags                          |             | Y           | Y                 | Y          |
-| [ggimage](https://github.com/GuangchuangYu/ggimage)      |**general**, all kinds of images|             | Y           | Y                 | Y                    |
+| [CatterPlots](https://github.com/Gibbsdavidl/CatterPlots)| cats                | Y           |             |                    |                |
+| [rphylopic](https://github.com/sckott/rphylopic)         | phylopic           | Y           | Y          | Y & N<sup>*</sup>   |                 |
+| [emoGG](https://github.com/dill/emoGG)                   | emoji                |             | Y          | Y                 |                 |
+| [ggflags](https://github.com/baptiste/ggflags)           | flags                         |             | Y           | Y          | Y          |
+| [ggimage](https://github.com/GuangchuangYu/ggimage)      |**general**, all kinds of images|    | Y           | Y                 | Y             |
 
 
 <sup>\*</sup> `rphylopic` supports using `p+add_phylopic()` to add **1** image each time since it internally use `annotation_custom`.
 
 <sup>&</sup> a geom layer supports adding multiple (copy/different) images simultaneously.
 
-<sup>^</sup> without `aes` mapping, a layer can only add multiple copy of **a** image at different positions. While with `aes`, one can map a categorical variable to **different** images and adding them to a layer.
+<sup>^</sup> without `aes` mapping, a layer can only add multiple copy of **an** image at different positions. While with `aes`, one can map a categorical variable to **different** images and adding them to a layer.
 
 ## Examples
 
 **ggimage** provides general solution for using images in *ggplot2*. It's easy to reproduce examples of other packages that designed for specific need.
 
-### CatterPlots 
+### CatterPlots
 
 ```r
 library(ggplot2)