Recursive scp arguments reversed (#1321)

* Recursive scp arguments reversed

The command to "copy [...] on a remote host to a local
directory" in the current scp tldr page was backwards.

scp arguments take the form `scp from to`.

* add the word from for clarity

pages/common/scp.md

@@ -11,9 +11,9 @@
 
 `scp {{remote_host}}:{{path/to/remote_file}} {{path/to/local_dir}}`
 
-- Recursively copy the contents of a directory on a remote host to a local directory:
+- Recursively copy the contents of a directory from a remote host to a local directory:
 
-`scp -r {{path/to/local_dir}} {{remote_host}}:{{path/to/remote_dir}}`
+`scp -r {{remote_host}}:{{path/to/remote_dir}} {{path/to/local_dir}}`
 
 - Copy a file between two remote hosts transferring through the local host: