Update README

README.md

@@ -5,12 +5,28 @@
 This application renders the mandelbrot set (in an acceptable time) on your TI
 CE calculator.
 
+## Installing & running
+
+Download the `MBROT.8xp` of the [latest release](https://github.com/Thyrum/ce-mandelbrot/releases/latest)
+from the github page. Transfer this file to your calculator using
+[TI connect](https://education.ti.com/en/products/computer-software/ti-connect-sw)
+or send it to your emulator. Then run the program by pressing the `prgm` button,
+selecting the program `MBROT` and pressing `enter` twice (to select and run
+`MBROT`).
+
+Note the program will draw the mandelbrot set in about 90 seconds, after which
+you can press any key to return to the home screen. The drawing can also be
+aborted by pressing the `on` key.
+
+
 ## Building
 
 In order to compile the mandelbrot set, please follow the steps at the
 [CE Toolchain documentation](https://ce-programming.github.io/toolchain/static/getting-started.html)
 "Getting Started" section in order to set up your CE development environment.
-Then run `make` in the project root in order to compile the program.
+Then run `make` in the project root in order to compile the program. The program
+can then be found in `bin/MBROT.8xp`.
+
 
 ## Developer notes
 
@@ -25,7 +41,7 @@ to
 using T = float;
 ```
 in `src/mandelbrot.cpp`. This results in a more detailed image at the cost of
-vastly increased rendering times. The `9` fraction bits for the fixed point
+more than doubled rendering times. The `9` fraction bits for the fixed point
 numbers are chosen to reduce the amount of overflow errors (which are
 automatically detected when making the debug build). As it is, a total of only 4
 overflow errors is produced (probably causing 4 pixels to have the wrong color).