Replicating changes by Franzqat from #345

Author: csparpa

CONTRIBUTORS.md

@@ -27,6 +27,7 @@ Code
 Docs
 ----
   * [EJEP](https://github.com/EJEP)
+  * [Franzqat](https://github.com/franzqat)
   * [Harmon758](https://github.com/Harmon758)
 
 Testing

sphinx/v3/code-recipes.md

@@ -450,7 +450,7 @@ mgr = owm.weather_manager()
 my_city_id = 12345
 moscow_lat = 55.75222
 moscow_lon = 37.615555
-weather_at_moscow = owm.weather_at_coords(moscow_lat, moscow_lon).weather 
+weather_at_moscow = mgr.weather_at_coords(moscow_lat, moscow_lon).weather 
 ```
 
 ### Get weather at city IDs
@@ -461,8 +461,8 @@ You can enquire the observed weather on a city ID:
 from pyowm.owm import OWM
 owm = OWM('your-api-key')
 mgr = owm.weather_manager()
-my_city_id = 12345
-weather = owm.weather_at_id(my_city_id).weather 
+my_city_id = 2643743 #London
+weather = mgr.weather_at_id(my_city_id).weather 
 ```
 
 or on a list of city IDs:
@@ -471,8 +471,8 @@ or on a list of city IDs:
 from pyowm.owm import OWM
 owm = OWM('your-api-key')
 mgr = owm.weather_manager()
-my_list_of_city_ids = [12345, 67890, 54321]
-list_of_observations = owm.weather_at_ids(my_list_of_city_ids)
+my_list_of_city_ids = [2643743 , 4517009, 5056033]
+list_of_observations = mgr.weather_at_ids(my_list_of_city_ids)
 corresponding_weathers_list = [ obs.weather for obs in list_of_observations ]
 ```