small amends to .Rmd report, re-run to test. works

Rmd/basicReport.Rmd

@@ -29,6 +29,7 @@ bibliography: '`r here::here("bibliography.bib")`'
 ---
 
 ```{r knitrSetup, include=FALSE}
+startTime <- proc.time()
 knitr::opts_chunk$set(echo = FALSE) # by default turn off code echo
 ```
 
@@ -56,17 +57,16 @@ There's quite a lot of data...
 drake::readd(gWPlot)
 ```
 
-# Runtime
+# R environment
 
 ```{r check runtime, include=FALSE}
+# within Rmd timing
 t <- proc.time() - startTime
 elapsed <- t[[3]]
 ```
 
 Report generated in `r round(elapsed,2)` seconds ( `r round(elapsed/60,2)` minutes) using [knitr](https://cran.r-project.org/package=knitr) in [RStudio](http://www.rstudio.com) with `r R.version.string` running on `r R.version$platform`.
 
-# R environment
-
 ## R packages used
 
  * base R [@baseR]