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

tldr/ncmpcpp

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# ncmpcpp
+
+> A command-line music player client for the Music Player Daemon.
+> More information: <https://rybczak.net/ncmpcpp>.
+
+- Connect to a music player daemon on a given host and port:
+
+`ncmpcpp --host {{ip}} --port {{port}}`
+
+- Display metadata of the current song to console:
+
+`ncmpcpp --current-song`
+
+- Use a specified configuration file:
+
+`ncmpcpp --config {{file}}`
+
+- Use a different set of key bindings from a file:
+
+`ncmpcpp --bindings {{file}}`