Updated README.md

README.md

@@ -1,2 +1,33 @@
 # rainbrot
 A fractal generator using the buddhabrot method to render various fractal formulae
+
+
+Usage: rainbrot-gen [-v?] [-b BAILOUT] [-f {mandelbrot,ship,custom}]
+            [-i ITER1,ITER2[,...]] [-r RUNS] [-s WIDTHxHEIGHT] [-t THREADS]
+            [-w RE_MIN,IM_MIN,RE_MAX,IM_MAX] [-x SEED] [--bail=BAILOUT]
+            [--function={mandelbrot,ship,custom}] [--iter=ITER1,ITER2[,...]]
+            [--runs=RUNS] [--size=WIDTHxHEIGHT] [--threads=THREADS]
+            [--window=RE_MIN,IM_MIN,RE_MAX,IM_MAX] [--seed=SEED] [--verbose]
+            [--help] [--usage]
+
+rainbrot -- A program to generate histogram of probabilities that certain
+region of Gauss plane will be the solution of an iteration of a random sampled
+point using a specified complex iterative equation.
+
+  -b, --bail=BAILOUT         Maximal absolute value, which will cause a point
+                             to be discarded after reaching it
+  -f, --function={mandelbrot,ship,custom}
+  -i, --iter=ITER1,ITER2[,...]   Bands of iteration depths
+  -r, --runs=RUNS            Number of starting points to be iterated (O means
+                             until stop via Ctrl+C)
+  -s, --size=WIDTHxHEIGHT    Size of image in pixels
+  -t, --threads=THREADS      Number of threads to run the iterator in
+  -w, --window=RE_MIN,IM_MIN,RE_MAX,IM_MAX
+                             Displayed area of the Gauss plane
+  -x, --seed=SEED            Starting seed for the random number generator
+  -v, --verbose              Produce verbose output
+  -?, --help                 Give this help list
+      --usage                Give a short usage message
+
+Mandatory or optional arguments to long options are also mandatory or optional
+for any corresponding short options.