chore(gitignore): exclude '/build' folder or symlink too

# Build files

/build/

# Build intermediates

/build

# Compiled files

# Compiled intermediates

*.pyc

__pycache__/

# Coverage files

# Coverage intermediates

coverage-reports/

# Distribution files

# Distribution intermediates

.eggs/

*.egg-info/

dist/

/docs/index.md

/public

# SonarQube files

# SonarQube intermediates

.scannerwork/

.sonar/

# Temporary files

# Temporary intermediates

.*.swp

.tmp/

.tmp.*