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

tldr/satis

@@ -0,0 +1,29 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# satis
+
+> The command-line utility for the Satis static Composer repository.
+> More information: <https://github.com/composer/satis>.
+
+- Initialize a Satis configuration:
+
+`satis init {{satis.json}}`
+
+- Add a VCS repository to the Satis configuration:
+
+`satis add {{repository_url}}`
+
+- Build the static output from the configuration:
+
+`satis build {{satis.json}} {{path/to/output_directory}}`
+
+- Build the static output by updating only the specified repository:
+
+`satis build --repository-url {{repository_url}} {{satis.json}} {{path/to/output_directory}}`
+
+- Remove useless archive files:
+
+`satis purge {{satis.json}} {{path/to/output_directory}}`