chore: update .vscodeignore and README [ci skip]

Author: natterstefan

.vscodeignore

@@ -9,11 +9,17 @@ docs/**
 src/**/*.test.js
 dist-test/**
 test/**
+test-project/**
 
 # tools
+.github/**
 .eslintrc.js
 .gitignore
 .npmrc
 .nvmrc
 .prettierrc
 babel.config.js
+
+# development
+node_modules
+tmp

README.md

@@ -86,7 +86,13 @@ other VS Code instance is running.
 
 ### Publishing
 
-- [Publishing](https://code.visualstudio.com/api/working-with-extensions/publishing-extension#packaging-extensions)
+Simple execute the commands below or read more about [Publishing](https://code.visualstudio.com/api/working-with-extensions/publishing-extension#packaging-extensions)
+first.
+
+```bash
+npx vsce package
+npx vsce publish
+```
 
 ## Tools