Fix some text issues while proof-reading

The architecture file had some typos and similar issues.

For the dashes change, refer to https://en.wikipedia.org/wiki/Dash. En dash is the correct one here.

ARCHITECTURE.md

@@ -2,16 +2,16 @@
 
 StreetComplete queries external services to find quest candidates.
 
-Every quest type has defined some properties, including [Overpass](https://wiki.openstreetmap.org/wiki/Overpass_API) queries . Overpass instance is queried and responds with OpenStreetMap data matching rules for quest candidates.
+Every quest type has defined some properties, including [Overpass](https://wiki.openstreetmap.org/wiki/Overpass_API) queries. The Overpass instance is queried and responds with OpenStreetMap data matching rules for quest candidates.
 
 Query responses are used to build a local quest database, displayed to the user as markers on the map. Once a user solves a quest, the solution is stored in the local database as a diff. Changes are [uploaded to OSM](https://wiki.openstreetmap.org/wiki/API_v0.6) as soon as possible. Changes are made in the OSM database using credentials provided by the user. Edits are grouped into changesets by quest types.
 
-Definition of quests in the program may be simple, with just few parameters and made with reusable blocks, like [quest asking whatever toilet is paid](https://github.com/westnordost/StreetComplete/blob/master/app/src/main/java/de/westnordost/streetcomplete/quests/toilets_fee/AddToiletsFee.kt). Some definitions are highly complicated, defining special interfaces, using [country specific data](https://github.com/westnordost/StreetComplete/tree/master/res/country_metadata) or involve special processing of data. [The quest asking about house number](https://github.com/westnordost/StreetComplete/tree/master/app/src/main/java/de/westnordost/streetcomplete/quests/housenumber) is a good example of a quest handling quite complex situations. For starters, not the entire world has the same numbering system - some countries have block-based addressing or addresses with [more than one](https://wiki.openstreetmap.org/wiki/Key:addr:conscriptionnumber) assigned house number.
+The definition of quests in the program may be simple, with just few parameters and made with reusable blocks, like [quest asking whatever toilet is paid](https://github.com/westnordost/StreetComplete/blob/master/app/src/main/java/de/westnordost/streetcomplete/quests/toilets_fee/AddToiletsFee.kt). Some definitions are highly complicated, defining special interfaces, using [country specific data](https://github.com/westnordost/StreetComplete/tree/master/res/country_metadata) or involve special processing of data. [The quest asking about house number](https://github.com/westnordost/StreetComplete/tree/master/app/src/main/java/de/westnordost/streetcomplete/quests/housenumber) is a good example of a quest handling quite complex situations. For starters, not the entire world has the same numbering system – some countries have block-based addressing or addresses with [more than one](https://wiki.openstreetmap.org/wiki/Key:addr:conscriptionnumber) assigned house number.
 
 Some quests may be based on other data sources. The [note quest](https://github.com/westnordost/StreetComplete/tree/master/app/src/main/java/de/westnordost/streetcomplete/quests/note_discussion) is based on data directly downloaded from the [OSM API](https://wiki.openstreetmap.org/wiki/API_v0.6#Map_Notes_API). The [oneway quest](https://github.com/westnordost/StreetComplete/tree/master/app/src/main/java/de/westnordost/streetcomplete/quests/oneway) is using [an external list of roads likely to be a oneway](https://github.com/ENT8R/oneway-data-api).
 
-The note quest is also special because part of the answer - photos made by users - is uploaded to a [special photo service](https://github.com/exploide/sc-photo-service), as OSM notes do not allow hosting of images directly on OSM servers.
+The note quest is also special because part of the answer – photos made by users – is uploaded to a [special photo service](https://github.com/exploide/sc-photo-service), as OSM notes do not allow hosting of images directly on OSM servers.
 
 # Map
 
-SC downloads the [vector tiles](https://github.com/tilezen/vector-datasource) used to display its map from an external source, and renders them using the library [tangram-es](https://github.com/tangrams/tangram-es).
+SC downloads the [vector tiles](https://github.com/tilezen/vector-datasource) used for displaying its map from an external source and renders them using the library [tangram-es](https://github.com/tangrams/tangram-es).