doc: readme polishing

Author: jefferis

README.md

@@ -10,14 +10,18 @@
 <!-- badges: end -->
 
 The goal of *natcpp* is to provide accelerated routines through compiled C++ 
-code for basic functions to support the [natverse](https://natverse.org) computational neuroanatomy ecosystem.
+code for basic functions to support the [natverse](https://natverse.org) 
+computational neuroanatomy ecosystem.
 *natcpp* is not designed to be used by end users but instead the 
 [nat](https://natverse.org/nat/) package will use it when available to enable
-large speed-ups for some primitive operations. End users should therefore not count on the  *natcpp* functions/interface being stable, especially during its
+large speed-ups for some primitive operations. End users should therefore not 
+count on the  *natcpp* functions/interface being stable, especially during its
 initial development.
 
 Our plan is to get this onto
-CRAN quite quickly so that binary packages will be available to Mac/Windows users who do not have a full C compiler toolchain installed. Once on CRAN, we will try to keep the package simple and stable, with infrequent
+CRAN quite quickly so that binary packages will be available to Mac/Windows 
+users who do not have a full C compiler toolchain installed. Once on CRAN, 
+we will try to keep the package simple and stable, with infrequent
 updates. A development version will be available via the relevant github
 repository (see below). 
 We do not intend to specify a GitHub remote so these updates will not be 
@@ -26,7 +30,7 @@ intervenes.
 
 ## Installation
 
-Install the released version of natcpp from [CRAN](https://CRAN.R-project.org) with:
+Install the released version of natcpp from [CRAN](https://cran.r-project.org/package=natcpp) with:
 
 ``` r
 install.packages("natcpp")
@@ -52,5 +56,3 @@ library(natcpp)
 topntail(as.seglist(Cell07PNs[[1]]))
 
 ```
-
-.