handle files with no statements

Program.cs

@@ -135,6 +135,11 @@ namespace BunyMuny {
 				Console.WriteLine(statement);
 			}
 
+			if (statements.Count == 0) {
+				Console.WriteLine("No statements found.");
+				return 2;
+			}
+
 			Console.WriteLine("Summary:");
 			Console.WriteLine("==================");
 			var summaries = statements.GroupBy(s => s.Category). // group statements by category

README.md

@@ -12,9 +12,9 @@ dotnet build
 ```
 
 ## Supported banks
-- ME Bank ([guide](https://git.bune.city/lynnesbian/BunyMuny/raw/branch/master/guide/me.png))
-- NAB
-- CommBank
+ - ME Bank ([guide](https://git.bune.city/lynnesbian/BunyMuny/raw/branch/master/guide/me.png))
+ - NAB
+ - CommBank
 
 ## The rules file
 By default, BunyMuny checks for rules in `rules.csv` in the current directory.
@@ -31,13 +31,13 @@ This means that:
  - Any statement that doesn't match these two rules will be categorised as "Other", and will use the description provided by the bank file.
 
 ### Detailed explanation
-- `Match` specifies the type of matching to perform. It can be any of the following:
+ - `Match` specifies the type of matching to perform. It can be any of the following:
     - "Start": Match the start of the description.
     - "End": Match the end of the description.
     - "Contains": Match anywhere in the description.
     - "Exact": Only match if the bank statement's description is exactly equal to the provided value.
     - "Regex": Match with [regular expressions](https://en.wikipedia.org/wiki/Regular_expression).
-- `Value` specifies the value to match against.
-- `Category` is the category that the statement should be filed under.
-- `Description` is a short description to distinguish the particular merchant.
-- `CaseSensitive` specifies whether or not the match should be case sensitive.
+ - `Value` specifies the value to match against.
+ - `Category` is the category that the statement should be filed under.
+ - `Description` is a short description to distinguish the particular merchant.
+ - `CaseSensitive` specifies whether or not the match should be case sensitive.