Generate Layer READMEs for OpenMapTiles

generate_layer_readmes.sh

#!/bin/bash
set -o errexit
set -o nounset

function layer_readme() {
    local layer="$1"
    echo "## $layer" > $layer/README.md
    echo "" >> $layer/README.md
    echo "### Docs" >> $layer/README.md
    echo "Read the layer documentation at **http://openmaptiles.org/schema#$layer**" >> $layer/README.md
    echo "" >> $layer/README.md
    echo "### Mapping Diagram" >> $layer/README.md
    echo "![Mapping diagram for $layer](http://openmaptiles.org/media/mapping_$layer.png)" >> $layer/README.md
    echo "" >> $layer/README.md
    echo "### ETL diagram" >> $layer/README.md
    echo "![ETL diagram for $layer](http://openmaptiles.org/media/etl_$layer.png)" >> $layer/README.md
    echo "" >> $layer/README.md
}

layer_readme 'aeroway' 
layer_readme 'boundary'
layer_readme 'building'
layer_readme 'housenumber'
layer_readme 'landcover'
layer_readme 'landuse'
layer_readme 'park'
layer_readme 'place'
layer_readme 'poi'
layer_readme 'transportation'
layer_readme 'transportation_name'
layer_readme 'water'
layer_readme 'water_name'
layer_readme 'waterway'