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

tldr/netbsd/pkgin

@@ -0,0 +1,33 @@
+---
+syntax: markdown
+tags: [tldr, netbsd]
+source: https://github.com/tldr-pages/tldr.git
+---
+# pkgin
+
+> Manage `pkgsrc` binary packages on NetBSD.
+> More information: <https://pkgin.net/#usage>.
+
+- Install a package:
+
+`pkgin install {{package}}`
+
+- Remove a package and its dependencies:
+
+`pkgin remove {{package}}`
+
+- Upgrade all packages:
+
+`pkgin full-upgrade`
+
+- Search for a package:
+
+`pkgin search {{keyword}}`
+
+- List installed packages:
+
+`pkgin list`
+
+- Remove unneeded dependencies:
+
+`pkgin autoremove`