fix example output to ensure correct change to output

episodes/15-wildcards-pipes.Rmd

@@ -276,13 +276,15 @@ $ echo "We want to add this sentence to the end of our file" >> word_counts.txt
 $ cat word_counts.txt
 ```
 ```output
-  22129 dmel_unique_protein_isoforms_fb_2016_01.tsv
- 471308 Drosophila_melanogaster.BDGP5.77.gtf
-      0 fastq
-1304914 fb_synonym_fb_2016_01.tsv
- 106290 gene_association.fb
-      1 test.txt
-1904642 total
+    53037 bash-lesson.tar.gz
+   542048 dmel-all-r6.19.gtf
+    22129 dmel_unique_protein_isoforms_fb_2016_01.tsv
+wc: fastq: Is a directory
+        0 fastq
+   106290 gene_association.fb
+        1 test.txt
+        7 word_counts.txt
+   723512 total
 We want to add this sentence to the end of our file
 ```