Move pages under tldr, lint run.sh, update docs

tldr/osx/csshx

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, osx]
+source: https://github.com/tldr-pages/tldr.git
+---
+# csshX
+
+> Cluster SSH tool for macOS.
+> More information: <https://github.com/brockgr/csshx>.
+
+- Connect to multiple hosts:
+
+`csshX {{hostname1}} {{hostname2}}`
+
+- Connect to multiple hosts with a given SSH key:
+
+`csshX {{user@hostname1}} {{user@hostname2}} --ssh_args "-i {{path/to/key_file.pem}}"`
+
+- Connect to a pre-defined cluster from `/etc/clusters`:
+
+`csshX cluster1`