Update readme

readme.md

@@ -10,7 +10,7 @@ For more information on how to this works with other frontends/backends, head ov
 
 ## Mobil Client
 
-TODO
+`TODO`
 
 ## Collected data types
 
@@ -54,7 +54,7 @@ The secret key and jwt issuer are stored in `application.properties`.
 
 # Database
 
-It uses PostgreSQL database
+It uses PostgreSQL database.
 
 # Build and run