unimatrix: add page (#11350)

* add: unimatrix

* Update pages/common/unimatrix.md

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* Update pages/common/unimatrix.md

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* use long options instead

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* correct typo

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* use long options instead

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* use long options instead

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* correct formatting

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* correct formatting

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* realign order of args

Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>

* change examples to show clearer opts

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

* rephrase program purpose

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

* remove optional `=` from args

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

---------

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>
Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>
Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>
Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

pages/common/unimatrix.md

@@ -0,0 +1,25 @@
+# unimatrix
+
+> Simulate the Matrix look with Unicode characters.
+> See also: `cmatrix`.
+> More information: <https://github.com/will8211/unimatrix>.
+
+- Mimic the default output of `cmatrix` (no unicode, works in a TTY):
+
+`unimatrix --no-bold --speed {{96}} --character-list {{o}}`
+
+- No bold characters, slowly, with emojis, numbers, and a few symbols:
+
+`unimatrix --no-bold --speed {{50}} --character-list {{ens}}`
+
+- Change the color of characters:
+
+`unimatrix --color {{red|green|blue|white|...}}`
+
+- Select character set(s) using letter codes (see `unimatrix --help` for available character sets):
+
+`unimatrix --character-list {{character_sets}}`
+
+- Change the scrolling speed:
+
+`unimatrix --speed {{number}}`