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/scp.md

@@ -6,6 +6,7 @@
 - upload a file, or upload and rename a file
 
 `scp {{/local/file.txt}} {{10.0.0.1}}:{{/remote/path/}}`
+
 `scp {{/local/file.txt}} {{10.0.0.1}}:{{/remote/path/newname.txt}}`
 
 - download a file
@@ -15,6 +16,7 @@
 - upload or download a directory
 
 `scp -r {{/local/folder}} {{10.0.0.1}}:{{/remote/path/}}`
+
 `scp -r {{10.0.0.1}}:{{/remote/path}} {{/local/folder}}`
 
 - specify username on host