README updated

README.md

@@ -1,6 +1,63 @@
 # img2ascii
-CLI  that converts images into ascii art and prints them to the console
+This Command-Line tool converts input images into ASCII art.
+
+It can be configured using flags on the command line, a few options of which are:
+ * Simple ASCII (using the map ` .:-=+*#%@"`)
+ * Complex ASCII (using the map ``` .'`^",:;Il!i><~+_-?][}{1)(|\/tfjrxnuvczXYUJCLQ0OZmwqpdbkhao*#MW&8%B@$```)
+ * [Braille symbols](https://en.wikipedia.org/wiki/Braille_Patterns)
+ * Custom character maps (through the `--map` flag)
+
+# Prerequisites
+* [Rust](https://www.rust-lang.org/) (building from source only)
+
+# Installation
+Installing is pretty easy,
+just grab the appropriate executable from the releases tab,
+and you're good to go!
+
+## Building from source
+```shell
+git clone https://github.com/djairoh/img2ascii
+cd ./img-search
+cargo build --release
+mv ./target/release/
+./img2ascii <FILE> [FLAGS]
+```
+
+# Running
+Running the program is very simple. 
+Simply execute `./img2ascii <IMAGE>` and it will convert <IMAGE> to ASCII and print to stdout.
+
+Of course the output can be customized, by using one (or more) flags.
+## options
+ * -c, --complex: uses the extended character map
+ * -C, --colour: Display ASCII art in full 24-bit colour
+ * -b, --braille: Use braille characters instead of a character map
+ * -d, --debug: Print debugging information
+ * -f, --full: use the full width of the terminal, instead of fitting the image to the terminal dimensions
+ * --threshold: use a custom threshold when converting to braille (range 0-255, default: 128)
+ * -M, --map: use a custom character map
+ * -w, --width: force a specific width of the output
+ * -o, --output: Save the output to a text file, instead of printing to terminal
+ * -h, --help: Print help information (extended info with '--help')
+
+## conflicting flags
+The flags `--complex`, `--braille`, `--map` conflict.
+When two or more of these are entered in the same command,
+the program uses the one with the highest precedence, in the order
+`braille > complex > map`.
+
+The flags `--output` and `--colour` also conflict. 
+When both are entered, the flag `--output` takes precedence
+(leading to a simple txt file).
+
+Lastly, the flags `--full` and `--width` are mutually exclusive.
+When both are entered, the flag `-full` will be applied
+(`full > width`).
+
+# Documentation
+The program has been documented with RustDoc,
+which can be compiled and viewed with
+`cargo doc --open`.
 
 
-
-//todo: Update this

src/main.rs

@@ -14,11 +14,6 @@ mod ascii_manipulation;
 mod output;
 mod model_rgb_ascii;
 
-//todo: general
-/* Readme
- */
-
-
 /// This is the main function.
 ///
 /// It drives the CLI module, calls the appropriate convert functions and directs output.