Add configuration section

ref #5

inst/report-templates/rmarkdown-1/report-1.Rmd

@@ -286,3 +286,26 @@ cat(sprintf("1. %s;", checks$smells_inactive$check_name), sep = "\n")
 
 To enable/disable a smell, set the `active` element in the yaml checks file to "true" or "false".
 </div>
+
+Configuration {.tabset .tabset-fade}
+=============================
+
+For the sake of documentation and reproducibility, the current report was rendered in the following environment.  Click the line below to expand.
+
+<details>
+  <summary>Environment <span class="glyphicon glyphicon-plus-sign"></span></summary>
+```{r session-info, echo=FALSE}
+if( requireNamespace("sessioninfo", quietly = TRUE) ) {
+  sessioninfo::session_info()
+} else {
+  sessionInfo()
+}
+```
+</details>
+
+```{r session-duration, echo=FALSE}
+report_render_duration_in_seconds <- as.integer(difftime(Sys.time(), report_render_start_time, units="secs"))
+```
+
+Report rendered by `r Sys.info()["user"]` at `r strftime(Sys.time(), "%Y-%m-%d, %H:%M %z")` in `r report_render_duration_in_seconds` seconds.
+