fix RUN

10/README.md

@@ -11,6 +11,6 @@ I used lots of simple bitwise operations because I might implement this solution
 
 ```shell
 rustc day10.rs
-./day10RUN
+./day10
 ```
 <!-- lots of bitwise operations -->

11/README.md

@@ -9,5 +9,5 @@ Execution time: **0,005 s**
 
 ```shell
 rustc day11.rs
-./day11RUN
+./day11
 ```

13/README.md

@@ -16,7 +16,7 @@ This approach is super fast since it has 0 heap allocations in loops and compari
 
 ```shell
 rustc day13.rs
-./day13RUN
+./day13
 ```
 
 <!-- binary encoding ftw -->

make_day_readme.sh

@@ -124,7 +124,7 @@ else
 fi
 
 if [[ -n $howto ]]; then
-    sed -i "s|HOWTO|$howto|" $readme
+    sed -i "s|HOWTORUN|$howto|" $readme
 fi
 
 if [[ $loc == 0 ]]; then