(te/upp-2023/w1) Finalized images and added acknowledgements

1 files changed, 8 insertions, 5 deletions

diff --git a/src/teaching/upp-2023/week1/welcome.md b/src/teaching/upp-2023/week1/welcome.md
index 7cd127f..906eaa6 100644
--- a/src/teaching/upp-2023/week1/welcome.md
+++ b/src/teaching/upp-2023/week1/welcome.md
@@ -355,13 +355,13 @@ Stephen Kleene
 - Заедно: математиката, компютърните науки и инженерството, на гърбовете на десетки хиляди хора,  
   ни позволяват да видим невидимото и правим невъзможното
 
-  &&width70 &&table
+  &&centered &&width60 &&table
   
   ![](https://upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Black_hole_-_Messier_87_crop_max_res.jpg/600px-Black_hole_-_Messier_87_crop_max_res.jpg)
   
-  ![](https://upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Antonov_An-225_with_Buran_at_Le_Bourget_1989_Manteufel.jpg/800px-Antonov_An-225_with_Buran_at_Le_Bourget_1989_Manteufel.jpg?20110922162736)
+  ![](https://upload.wikimedia.org/wikipedia/commons/thumb/d/d2/Internet_map_1024.jpg/600px-Internet_map_1024.jpg?20121030160606)
   
-  &&/table &&/width
+  &&/table &&/width &&/centered
 
 &&/slide
 
@@ -382,10 +382,13 @@ Stephen Kleene
 
 &&/font &&/centered &&/clide
 
-### Благодарности
+### Употреба на изображения
 
-Снимки на Claude Shannon и Stephen Cole Kleen от [Konrad Jacobs](TODO).
+Снимки на [Claude Shannon](https://upload.wikimedia.org/wikipedia/commons/9/99/ClaudeShannon_MFO3807.jpg?20190622223728) и [Stephen Cole Kleen](https://upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Kleene.jpg/421px-Kleene.jpg?20230630215747), предоставни от Konrad Jacobs с авторско право от [MFO](https://opc.mfo.de/), лицензирано с [CC BY-SA 2.0 DE](https://creativecommons.org/licenses/by-sa/2.0/de/deed.en) в Уикипедия.
 
+Снимка на черната дупка Messier 87, предоставена от [ESO](https://www.eso.org/public/) с лиценз [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/deed.en) в [Уикипедия](https://en.wikipedia.org/wiki/File:Black_hole_-_Messier_87_crop_max_res.jpg).
+
+Изображение на интернет мрежата направено от [Matt Britt](https://en.wikipedia.org/wiki/User:Matt_Britt) с данни от [The Opte Project](https://www.opte.org/), лизензирано с [CC BY 2.5](https://creativecommons.org/licenses/by/2.5/deed.en) в [Уикипедия](https://commons.wikimedia.org/wiki/File:Internet_map_1024.jpg).
 
 [^importance-of-sets]: [https://math.stackexchange.com/a/536172](https://math.stackexchange.com/a/536172)
 [^importance-of-combinatorics]: [https://math.stackexchange.com/questions/2146051/where-do-combinatorics-play-a-role-in-computer-science](https://math.stackexchange.com/questions/2146051/where-do-combinatorics-play-a-role-in-computer-science)