Fix a typo in .env.template

.env.template

@@ -8,7 +8,7 @@ REDDIT_PASSWORD=""
 # If no, it will ask you a thread link to extract the thread, if yes it will randomize it. Default: "no"
 RANDOM_THREAD=""
 
-# Filters the comments by range of lenght (min and max characters)
+# Filters the comments by range of length (min and max characters)
 # Min has to be less or equal to max
 # DO NOT INSERT ANY SPACES BETWEEN THE COMMA AND THE VALUES
 COMMENT_LENGTH_RANGE = "min,max"