Add cran-comments

cran-comments.md

@@ -1,25 +1,25 @@
-In response to Uwe's request, I added a reference to the RRD project in the package description, and also cleaned up the package title.
+This is an update of the rrd package.  In this release I fixed a bug, and added anticonf configuration, so the package gives helpful messages if the system requirements are not installed.
 
 ## System requirements
 
 This package requires `librrd-dev` and `rrdtool` as Linux system requirements.
 
-Ubuntu: sudo apt-get install rrdtool librrd-dev
-CentOS: sudo yum install rrdtool rrdtool-devel
+Ubuntu: apt-get install librrd-dev
+CentOS: yum install rrdtool-devel
+Fedora: dnf install rrdtool-devel
 
 ## Test environments
 
-* local Ubuntu 14.04, R-3.5.0
+* local Ubuntu 14.04, R-3.6.0
 * ubuntu 14.04 (on travis-ci), using R-release, R-devel as well as R-old-release
 
 ## Not available on Windows
 
-The package is not yet available on Windows (as indicated with OS_type: unix).  It has a system dependency on librrd, which I haven't yet built for Windows.  However, I've spoken to Jeroen Ooms and he has offered to help with this in future. 
+The package is not yet available on Windows (as indicated with OS_type: unix).
 
 ## R CMD check results
 
 0 errors | 0 warnings | 1 note
 
 The package contains a sample RRD file of 12.8Mb - this is necessary both for examples and tests.  RRD files are typically fixed in size, and I selected the smallest sample file I have access to.
 
-* This is a new release.