fix optimin readme
diff --git a/utils/optimin/README.md b/utils/optimin/README.md
index ec9c4b0..bea7722 100644
--- a/utils/optimin/README.md
+++ b/utils/optimin/README.md
@@ -19,34 +19,33 @@
Running `optimin` is the same as running `afl-cmin`:
```
-Required parameters:
- -i dir - input directory with starting corpus
- -o dir - output directory for minimized files
+./optimin -h
+OVERVIEW: Optimal corpus minimizer
+USAGE: optimin [options] <target program> [target args...]
-Execution control settings:
- -f file - location read by the fuzzed program (stdin)
- -m megs - memory limit for child process (none MB)
- -t msec - run time limit for child process (none)
- -O - use binary-only instrumentation (FRIDA mode)
- -Q - use binary-only instrumentation (QEMU mode)
- -U - use unicorn-based instrumentation (unicorn mode)
+OPTIONS:
-Minimization settings:
- -C - keep crashing inputs, reject everything else
- -e - solve for edge coverage only, ignore hit counts
+Color Options:
-For additional tips, please consult README.md
+ --color - Use colors in output (default=autodetect)
-Environment variables used:
-AFL_ALLOW_TMP: allow unsafe use of input/output directories under {/var}/tmp
-AFL_CRASH_EXITCODE: optional child exit code to be interpreted as crash
-AFL_FORKSRV_INIT_TMOUT: time the fuzzer waits for the forkserver to come up
-AFL_KEEP_TRACES: leave the temporary <out_dir>/.traces directory
-AFL_KILL_SIGNAL: Signal delivered to child processes on timeout (default: SIGKILL)
-AFL_NO_FORKSRV: run target via execve instead of using the forkserver
-AFL_PATH: path for the afl-showmap binary if not found anywhere in PATH
-AFL_PRINT_FILENAMES: If set, the filename currently processed will be printed to stdout
-AFL_SKIP_BIN_CHECK: skip afl instrumentation checks for target binary
+General options:
+
+ -C - Keep crashing inputs, reject everything else
+ -Q - Use binary-only instrumentation
+ -f - Include edge hit counts
+ -i dir - Input directory
+ -m megs - Memory limit for child process (default=none)
+ -o dir - Output directory
+ -p - Display progress bar
+ -t msec - Run time limit for child process (default=none)
+ -w csv - Weights file
+
+Generic Options:
+
+ --help - Display available options (--help-hidden for more)
+ --help-list - Display list of available options (--help-list-hidden for more)
+ --version - Display the version of this program
```
Example: `optimin -i files -o seeds -- ./target @@`
