fix comment

subjects/count-character/README.md

@@ -4,8 +4,8 @@
 
 Write a function that, given a string and a character as arguments, returns an int representing the number of times the character appears in the string.
 
-- if the character is not in the string return 0
-- if the string is empty return 0
+- if the character is not in the string return 0.
+- if the string is empty return 0.
 
 ### Expected Function
 
@@ -26,7 +26,7 @@ import "fmt"
 func main() {
     fmt.Println(CountChar("Hello World", 'l'))
     fmt.Println(CountChar("5  balloons",5))
-    fmt.Println(CountChar("     ", ' ')) //The first argument contains space and tabulation.
+    fmt.Println(CountChar("		 ", ' ')) // The first argument contains one space and tabulations.
     fmt.Println(CountChar("The 7 deadly sins", '7'))
 }
 ```
@@ -39,4 +39,4 @@ $ go run .
 0
 1
 1
-```
+```