betty: add page (#5341)

pages/common/betty.md

@@ -0,0 +1,36 @@
+# betty
+
+> Use natural language to execute commands.
+> More information: <https://github.com/pickhardt/betty>.
+
+- Ask Betty something:
+
+`betty {{what time is it}}`
+
+- Ask Betty version:
+
+`betty version`
+
+- Download a file:
+
+`betty download {{https://example.com/file.png}} to {{file.png}}`
+
+- Compress a file or directory to one of the support archive formats:
+
+`betty {{zip}} {{path/to/file_or_directory}}`
+
+- Extract an archive into the current directory:
+
+`betty {{unzip}} {{archive.tar.gz}}`
+
+- Extract an archive into a directory:
+
+`betty unarchive {{archive.tar.gz}} to {{directory}}`
+
+- Play Spotify:
+
+`betty play {{Spotify}}`
+
+- Drive Betty to madness:
+
+`betty go crazy`