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

tldr/linux/br

@@ -0,0 +1,30 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# br
+
+> Navigate directory trees interactively.
+> See also: `broot`.
+> More information: <https://github.com/Canop/broot>.
+
+- Start and navigate the current directory tree interactively:
+
+`br`
+
+- Start displaying the size of files and directories:
+
+`br --sizes`
+
+- Start displaying permissions:
+
+`br --permissions`
+
+- Start displaying directories only:
+
+`br --only-folders`
+
+- Start displaying hidden files and directories:
+
+`br --hidden`