added affarserken_se

doc/source/affarsverken_se.md

@@ -0,0 +1,34 @@
+# Affärsverken
+
+Support for schedules provided by [Affärsverken](https://www.affarsverken.se/), Sweden.
+
+## Configuration via configuration.yaml
+
+```yaml
+waste_collection_schedule:
+    sources:
+    - name: affarsverken_se
+      args:
+        address: ADDRESS
+        
+```
+
+### Configuration Variables
+
+**address**  
+*(String) (required)*
+
+## Example
+
+```yaml
+waste_collection_schedule:
+    sources:
+    - name: affarsverken_se
+      args:
+        address: Albatrossvägen 5, Ramdala
+        
+```
+
+## How to get the source argument
+
+Write you address exactly like on [https://www.affarsverken.se/avfallstjanster/hamtningstider/](https://www.affarsverken.se/avfallstjanster/hamtningstider/).