Add layers to search and reverse docs

reverse.md

@@ -62,10 +62,13 @@ Without specifying further, reverse geocoding doesn't restrict results to a part
 |`venue`|points of interest, businesses, things with walls|
 |`address`|places with a street address|
 |`country`|places that issue passports, nations, nation-states|
+|`macroregion`|a related group of regions. Mostly in Europe|
 |`region`|states and provinces|
+|`macrocounty`|a related group of counties. Mostly in Europe.|
 |`county`|official governmental area; usually bigger than a locality, almost always smaller than a region|
 |`locality`|towns, hamlets, cities|
 |`localadmin`|local administrative boundaries|
+|`borough`| a local administrative boundary, currently only used for New York City|
 |`neighbourhood`|social communities, neighbourhoods|
 |`coarse`|alias for simultaneously using `country`, `region`, `county`, `locality`, `localadmin`, and `neighbourhood`|
 

search.md

@@ -336,10 +336,13 @@ In Mapzen Search, place types are referred to as `layers`, ranging from fine to
 |`venue`|points of interest, businesses, things with walls|
 |`address`|places with a street address|
 |`country`|places that issue passports, nations, nation-states|
+|`macroregion`|a related group of regions. Mostly in Europe|
 |`region`|states and provinces|
+|`macrocounty`|a related group of counties. Mostly in Europe.|
 |`county`|official governmental area; usually bigger than a locality, almost always smaller than a region|
 |`locality`|towns, hamlets, cities|
 |`localadmin`|local administrative boundaries|
+|`borough`| a local administrative boundary, currently only used for New York City|
 |`neighbourhood`|social communities, neighbourhoods|
 |`coarse`|alias for simultaneously using `country`, `region`, `county`, `locality`, `localadmin`, and `neighbourhood`|