Update cheatsheets

linux/speedread

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# speedread
+
+> A simple terminal-based open source Spritz-alike.
+> Shows input text as a per-word RSVP (rapid serial visual presentation) aligned on optimal reading points, which allows reading text at a much more rapid pace than usual as the eye can stay fixed on a single place.
+> More information: <https://github.com/pasky/speedread>.
+
+- Read a text file at a specific speed:
+
+`cat {{path/to/file.txt}} | speedread -wpm {{250}}`
+
+- Resume from a specific line:
+
+`cat {{path/to/file.txt}} | speedread -resume {{5}}`
+
+- Show multiple words at a time:
+
+`cat {{path/to/file.txt}} | speedread -multiword`
+
+- Slow down by 10% during the reading session:
+
+`[`
+
+- Speed up by 10% during the reading session:
+
+`]`
+
+- Pause, and show the last few lines as context:
+
+`<space>`