added review13 to chapter13

trapperdot00 · trapperdot00 · commit 4de90eb666fd · 2025-05-11T06:45:12.000+02:00
diff --git a/Chapter13/README.md b/Chapter13/README.md
@@ -104,3 +104,6 @@ How would you scale your graph so that the input will fit?
 
 ## [Review 12](review/12.txt)
 How would you scale the input without trial and error?
+
+## [Review 13](review/13.txt)
+Why would you format your input rather than just having the file contain "the numbers"?
diff --git a/Chapter13/review/13.txt b/Chapter13/review/13.txt
@@ -0,0 +1,4 @@
+So that it is easier for humans to read, and to provide context for their values,
+when a given data starts is indicated by a '{', and when it ends by '}'.
+The year is separated by the data by a colon.
+Simple but effective sanity checks that prevent users from giving garbage values.
