Update README.md

README.md

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 # simple-grip
 simple `grip-like` program that allows you to search files/directories with a specific pattern
+
+
+# use
+```
+  <PATH>     base path to search
+  <PATTERN>  regex pattern, its recommended to wrap it around single quotes(')
+
+Options:
+  -r, --reverse        show anything that doesnt match the patterns
+  -s <TARGET>          search target, can either be name of the files/directories or file contents [default: names] [possible values: names, contents]
+  -t <MAX_THREAD>      set max thread count [default: 0]
+  -d <MAX_DEPTH>       max directory depth to search [default: 3]
+  -h, --help           Print help
+  -V, --version        Print version
+```
+- for example:
+
+`simple-grip /path/to/dir 'pattern\+' -s names -t 3 -d 4`
+
+will go in `/path/to/dir` and search for the files/directories that matches the `'pattern\+' ` with maximum 3 threads and `tree-depth` of 3