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

tldr/xcv

@@ -0,0 +1,25 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# xcv
+
+> Cut, copy, and paste in the command-line.
+> More information: <https://github.com/busterc/xcv>.
+
+- Cut a file:
+
+`xcv x {{input_file}}`
+
+- Copy a file:
+
+`xcv c {{input_file}}`
+
+- Paste a file:
+
+`xcv v {{output_file}}`
+
+- List files available for pasting:
+
+`xcv l`