Add docs.

license.md

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+Copyright 2021 annabunches@gmail.com
+
+⚠️ WARNING! ⚠️
+☢️ 😱 DO NOT USE THIS PROGRAM. 😱 ☢️
+This program is not a program of honor.
+
+No highly esteemed function is executed here.
+
+What is here is dangerous and repulsive to us.
+
+The danger is still present, in your time, as it was in ours,
+without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.
+
+This program is best shunned and left unused (but it is free software,
+and you are welcome to redistribute it under certain conditions).
+😱 ☢️ DO NOT USE THIS PROGRAM. ☢️ 😱
+
+This program is licensed under the Sandia Message Public License,
+sublicense Do What the Fuck You Want Public License.
+This may be abbreviated as sandia-wtfpl.
+You may obtain a copy of the License(s) at
+https://github.com/cdanis/sandia-public-license/blob/main/LICENSE.md and
+http://www.wtfpl.net/txt/copying/

readme.md

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+# Browser userscripts
+
+These scripts are intended to be run via a userscript plugin such as GreaseMonkey, Tampermonkey, etc.
+
+Tested in Google Chrome with Tampermonkey on Windows 10.
+
+Pull requests welcome, support not guaranteed.
+
+## Erkul Redundancy Filter
+
+erkul.games is a great tool for Star Citizen, but sometimes it just has *too much* data. Specifically, if you're
+comparing all of the Size 1 Laser Cannons, you probably only want to know the places where their stats *differ*.
+
+This script adds a button to Erkul's equipment lists that will hide columns that are identical for every item
+currently in the table. Great to use after you click "Compare Selected".
+
+NB: Currently the column headers are not restored after clicking "Reset Filter". To get the columns back, refresh the page.