Change 'render' terminology (#238)

ARCHITECTURE.md

@@ -5,7 +5,7 @@
 Planetiler builds a map in 3 phases:
 
 1. [Process Input Files](#1-process-input-files) according to
-   the [Profile](planetiler-core/src/main/java/com/onthegomap/planetiler/Profile.java) and write rendered tile features
+   the [Profile](planetiler-core/src/main/java/com/onthegomap/planetiler/Profile.java) and write vector tile features
    to intermediate files on disk
 2. [Sort Features](#2-sort-features) by tile ID
 3. [Emit Vector Tiles](#3-emit-vector-tiles) by iterating through sorted features to group by tile ID, encoding, and
@@ -46,7 +46,7 @@ from each input source:
       then emit a polygon source feature with the reconstructed geometry if successful
 
 Then, for each [SourceFeature](planetiler-core/src/main/java/com/onthegomap/planetiler/reader/SourceFeature.java),
-render vector tile features according to
+generate vector tile features according to
 the [Profile](planetiler-core/src/main/java/com/onthegomap/planetiler/Profile.java) in a worker thread (default 1 per
 core):
 

README.md

@@ -14,7 +14,7 @@ tools like [TileServer GL](https://github.com/maptiler/tileserver-gl) or even
 See [awesome-vector-tiles](https://github.com/mapbox/awesome-vector-tiles) for more projects that work with data in this
 format.
 
-Planetiler works by mapping input elements to rendered tile features, flattening them into a big list, then sorting by
+Planetiler works by mapping input elements to vector tile features, flattening them into a big list, then sorting by
 tile ID to group into tiles. See [ARCHITECTURE.md](ARCHITECTURE.md) for more details or
 this [blog post](https://medium.com/@onthegomap/dc419f3af75d?source=friends_link&sk=fb71eaa0e2b26775a9d98c81750ec10b)
 for more of the backstory.
@@ -143,7 +143,7 @@ Some other tools that generate vector tiles from OpenStreetMap data:
   on. It uses an intermediate postgres database and operates in two modes:
   1. Import data into database (~1 day) then serve vector tiles directly from the database. Tile serving is slower and
      requires bigger machines, but lets you easily incorporate realtime updates
-  2. Import data into database (~1 day) then prerender every tile for the planet into an mbtiles file which
+  2. Import data into database (~1 day) then pregenerate every tile for the planet into an mbtiles file which
      takes [over 100 days](https://github.com/openmaptiles/openmaptiles/issues/654#issuecomment-724606293)
      or a cluster of machines, but then tiles can be served faster on smaller machines
 - [Tilemaker](https://github.com/systemed/tilemaker) uses a similar approach to Planetiler (no intermediate database),