Update solution files to match exercise files

solutions/11_hashmaps/hashmaps1.rs

@@ -1,7 +1,7 @@
 // A basket of fruits in the form of a hash map needs to be defined. The key
 // represents the name of the fruit and the value represents how many of that
 // particular fruit is in the basket. You have to put at least 3 different
-// types of fruits (e.g apple, banana, mango) in the basket and the total count
+// types of fruits (e.g. apple, banana, mango) in the basket and the total count
 // of all the fruits should be at least 5.
 
 use std::collections::HashMap;