PARIG/GP

## New Language
[PARI/GP](https://pari.math.u-bordeaux.fr/)

## URL of example repository
https://pari.math.u-bordeaux.fr/Scripts/

https://github.com/rmathar/Clebsch-Gordan/tree/main

https://github.com/CRGreathouse/PARI-extensions

https://github.com/maxale/gpscripts

## URL of syntax highlighting grammar

## Most popular extensions
`.gp`

## Detected language
These scripts are currently flagged as gnuplot (which is I think usually using the suffix `.plt` ?)
unless one installs a `.bigattributes` file to avoid this

Review the PARI/GP example repositories linked in the issue, especially their use of the `.gp` extension, and compare the current gnuplot detection described there. Determine how Linguist represents language detection and syntax grammars before deciding what support is needed. Done means PARI/GP files are identified as PARI/GP rather than gnuplot without requiring a `.bigattributes` file.

Written by the indexing model from the issue text.