Fix plaintext typos (#1196)

iteration.qmd

@@ -687,7 +687,7 @@ Now when you come back to this problem in the future, you can read in a single c
 unlink("gapminder.csv")
 ```
 
-If you're working in a project, we'd suggest calling the file that does this sort of data prep work something like `0-cleanup.R.` The `0` in the file name suggests that this should be run before anything else.
+If you're working in a project, we'd suggest calling the file that does this sort of data prep work something like `0-cleanup.R`. The `0` in the file name suggests that this should be run before anything else.
 
 If your input data files change over time, you might consider learning a tool like [targets](https://docs.ropensci.org/targets/) to set up your data cleaning code to automatically re-run whenever one of the input files is modified.
 

workflow-pipes.qmd

@@ -1,4 +1,4 @@
-# Workflow: Pipes {#sec-workflow-pipes}
+# Workflow: pipes {#sec-workflow-pipes}
 
 ```{r}
 #| results: "asis"