Add extra newline between consecutive commands examples.

These 6 files had multiple examples all separated by a single newline.
While rendering it in markdown, the examples all come up in a single
line.
Adding another newline makes rendering better.
Also will help in easier copying (double click on the line to copy).

pages/common/srm.md

@@ -6,7 +6,9 @@
 - Removes a file after overwriting (single pass, 7 pass, 35 pass)
 
 `srm -s {{/path/to/file}}`
+
 `srm -m {{/path/to/file}}`
+
 `srm {{/path/to/file}}`
 
 - Scurely remove recursively a directory and all it's subdirectories