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

tldr/fusermount

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# fusermount
+
+> Mount and unmount FUSE filesystems.
+> More information: <https://manned.org/fusermount>.
+
+- Unmount a FUSE filesystem:
+
+`fusermount -u {{path/to/mount_point}}`
+
+- Unmount a FUSE filesystem as soon as it becomes unused:
+
+`fusermount -z {{path/to/mount_point}}`
+
+- Display version:
+
+`fusermount --version`