vizzu npm: add release.md and json

Author: veghdev

.gitignore

@@ -1,6 +1,7 @@
 .vscode
 .DS_Store
 build*
+release
 *.lib
 tmp
 *.user

project/npm/package.json

@@ -0,0 +1,30 @@
+{
+    "name": "vizzu",
+    "description": "Vizzu is a free, open-source Javascript/C++ library utilizing a generic dataviz engine that generates many types of charts and seamlessly animates between them. It can be used to create static charts but more importantly it is designed for building animated data stories and interactive explorers as Vizzu enables showing different perspectives of the data that the viewers can easily follow due to the animation.",
+    "keywords": [
+        "chart",
+        "charts",
+        "dataviz",
+        "charting-library",
+        "dashboard",
+        "animation",
+        "storytelling",
+        "data-visualization",
+        "data-analysis",
+        "charting",
+        "datavisualization"
+    ],
+    "homepage": "https://lib.vizzuhq.com/",
+    "url" : "https://github.com/vizzuhq/vizzu-lib/issues",
+    "email" : "[email protected]",
+    "license": "Apache-2.0",
+    "author": "Vizzu Kft.",
+    "main": "dist/vizzu.min.js",
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/vizzuhq/vizzu-lib.git"
+    },
+    "scripts": {
+        "test": "echo \"See the following guide how to test the project: https://github.com/vizzuhq/vizzu-lib/blob/main/test/test.md\""
+    }
+}

project/release.md

@@ -0,0 +1,35 @@
+# Releasing Vizzu
+
+## Releasing npm package
+
+Note: Build and test the project before release.
+
+Create npm package
+
+```
+mkdir -p release/vizzu
+
+cp README.md release/vizzu/README.md
+cp CHANGELOG.md release/vizzu/CHANGELOG.md
+cp project/npm/package.json release/vizzu/package.json
+
+mkdir -p release/vizzu/dist
+
+cp example/lib/cvizzu.wasm release/vizzu/dist/cvizzu.wasm
+cp example/lib/vizzu.d.ts release/vizzu/dist/vizzu.d.ts
+cp example/lib/vizzu.min.js release/vizzu/dist/vizzu.min.js
+```
+
+Set version number
+
+```
+cd release/vizzu
+npm version $(node ../../build/cmake-wasm/test/vizzutest.js -v|awk -F'-' '{print $1}')
+```
+
+Publish npm package
+
+```
+npm login
+npm publish
+```