Update and align store badges

Author: SimonSchubert

README.md

@@ -92,11 +92,11 @@ The source code is licensed under the Apache 2.0 license and the copyright of th
 
 #### Monthly
 
-<a href="https://github.com/vicenteserra"><img src="https://avatars.githubusercontent.com/u/10818763?s=60&v=4" width="50px" alt="vicenteserra" /></a> 
+<a href="https://github.com/vicenteserra"><img src="https://avatars.githubusercontent.com/u/10818763?s=60&v=4" width="60px" alt="vicenteserra" /></a> 
 
 #### Previous
 
-<a href="https://github.com/Loh-San"><img src="https://avatars.githubusercontent.com/u/94805454?s=60&v=4" width="50px" alt="Loh-San" /></a> 
+<a href="https://github.com/Loh-San"><img src="https://avatars.githubusercontent.com/u/94805454?s=60&v=4" width="60px" alt="Loh-San" /></a> 
 
 ### Thanks to
 

art/app_store_badge.png

@@ -148,7 +148,7 @@ class MarkdownBuilder {
                 stream.appendLine("#### Monthly")
                 stream.appendLine()
                 currentSponsors.forEach { (username, avatar) ->
-                    stream.append("<a href=\"https://github.com/$username\"><img src=\"$avatar\" width=\"50px\" alt=\"$username\" /></a> ")
+                    stream.append("<a href=\"https://github.com/$username\"><img src=\"$avatar\" width=\"60px\" alt=\"$username\" /></a> ")
                 }
                 stream.appendLine()
             }
@@ -157,7 +157,7 @@ class MarkdownBuilder {
                 stream.appendLine("#### Previous")
                 stream.appendLine()
                 pastSponsors.forEach { (username, avatar) ->
-                    stream.append("<a href=\"https://github.com/$username\"><img src=\"$avatar\" width=\"50px\" alt=\"$username\" /></a> ")
+                    stream.append("<a href=\"https://github.com/$username\"><img src=\"$avatar\" width=\"60px\" alt=\"$username\" /></a> ")
                 }
                 stream.appendLine()
             }