chore: add templates for bug/feature issues

.github/ISSUE_TEMPLATE/1-bug.yml

@@ -0,0 +1,27 @@
+# yamllint disable rule:line-length
+---
+name: 🐞 Bug Report
+description: File a bug/issue
+title: '[Bug]: '
+assignees: ['piotr-semenov']
+labels: ['bug']
+body:
+  - type: textarea
+    attributes:
+      label: PARI/GP syntax failure
+      description: Example of wrong syntax markup of your PARI/GP code.
+      placeholder: |+
+        Wrong markup for code below.
+        ```text
+        Your PARI/GP code here
+        ```
+    validations:
+      required: false
+  - type: textarea
+    attributes:
+      label: Any other problem (installation issues, build failures, etc.)
+      description: |
+        Anything about the issue you are encountering: description, screenshots, etc.
+      placeholder: Your description here...
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/2-feature.yml

@@ -0,0 +1,24 @@
+# yamllint disable rule:line-length
+---
+name: 💡 Feature Request
+description: Suggest an idea to enhance this project
+title: '[Feature]: '
+assignees: ['piotr-semenov']
+labels: ['enhancement']
+body:
+  - type: textarea
+    id: feature-proposal
+    attributes:
+      label: What would you like to add to this project?
+      description: Description of the feature or enhancement wanted.
+      placeholder: Your feature proposal here...
+    validations:
+      required: true
+  - type: textarea
+    id: feature-reason
+    attributes:
+      label: Why is this needed?
+      description: Please, provide the use case example why you need this feature.
+      placeholder: Your use case example here...
+    validations:
+      required: true

.pre-commit-config.yaml

@@ -37,7 +37,7 @@ repos:
         name: lints yaml
         entry: yamllint
         language: system
-        files: '.*\.(yaml|YAML-tmLanguage)'
+        files: '.*\.(yaml|yml|YAML-tmLanguage)'
   # xml
   - repo: local
     hooks:

README.md

@@ -1,22 +1,67 @@
-<!-- markdownlint-disable MD033 -->
-# PARI/GP Programming Language
-
+<!-- markdownlint-disable MD041 MD033 -->
 <p align="center">
-    A Textmate language grammar for programming language of PARI/GP computer algebra system.
-    <br />
-    <a href="https://github.com/piotr-semenov/parigp-lang/issues/new?labels=bug&assignees=piotr-semenov">Report bug</a>
-    ·
-    <a href="https://github.com/piotr-semenov/parigp-lang/issues/new?labels=enhancement">Request feature</a>
-    <br />
-    <img alt="Grammar Coverage" src="https://raw.githubusercontent.com/piotr-semenov/parigp-lang/main/images/coverage-badge.svg" height="20" />
-    <a href="http://pari.math.u-bordeaux.fr/"><img alt="PARI/GP Logo" src="http://pari.math.u-bordeaux.fr/site_icons/PARI-GP-small.png" height="20" border="1" /></a>
+    <h2 align="center">PARI/GP Programming Language</h2>
+    <p align="center">
+        A Textmate language grammar for programming language of PARI/GP computer algebra system.
+        <br />
+        <a href="https://github.com/piotr-semenov/parigp-lang/issues/new?template=1-bug.yml">Report bug</a>
+        ·
+        <a href="https://github.com/piotr-semenov/parigp-lang/issues/new?template=2-feature.yml">Request feature</a>
+        <br />
+        <img alt="Grammar Coverage" src="https://raw.githubusercontent.com/piotr-semenov/parigp-lang/main/images/coverage-badge.svg" height="20" />
+        <a href="http://pari.math.u-bordeaux.fr/"><img alt="PARI/GP Logo" src="http://pari.math.u-bordeaux.fr/site_icons/PARI-GP-small.png" height="20" border="1" /></a>
+        <a href="https://matrix.to/#/#parigp-lang:gitter.im"><img alt="Join the chat" src="https://badges.gitter.im/Join%20Chat.svg" height="20" /></a>
+    </p>
 </p>
 
 ## Table of Contents
 
-- [Install into Visual Studio Code](#install-into-visual-studio-code)
-- [Install into Sublime Text 3](#install-into-sublime-text-3)
+- [Use in Visual Studio Code](#use-in-visual-studio-code)
+  - [How to install](#vsix-how-to-install)
+  - [What's included in package](#vsix-whats-included-in-package)
+- [Use in Sublime Text](#use-in-sublime-text)
+  - [How to install](#st-how-to-install)
+  - [What's included in package](#st-whats-included-in-package)
+- [How to build on your own](#how-to-build-on-your-own)
+- [Creators](#creators)
+
+## Use in Visual Studio Code
+
+### <a id="vsix-how-to-install"></a> How to install
+
+Some text.
+
+### <a id="vsix-whats-included-in-package"></a> What's included in package
+
+```text
+folder1/
+└── folder2/
+    ├── folder3/
+    │   ├── file1
+    │   └── file2
+    └── folder4/
+        ├── file3
+        └── file4
+```
+
+## Use in Sublime Text
+
+Some text.
+
+### <a id="st-how-to-install"></a> How to install
+
+Some text.
+
+### <a id="st-whats-included-in-package"></a> What's included in package
+
+Some text.
+
+## How to build on your own
+
+```bash
+VER=23.11 vagrant up
+```
 
-## Install into Visual Studio Code
+## Creators
 
-## Install into Sublime Text 3
+- <https://github.com/piotr-semenov/>