Updated README file

README.md

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+# Subrake
+A powerful low-level socket scanner for enumerating subdomains, HTTP/HTTPS codes and CNAME records. 2.x to 3.x times faster.
+
+## Description
+Subrake is a powerful tool for enumerating subdomains, HTTP and HTTPS return codes, possible servers returned via headers and
+CNAME records. The connection required parts of the script are implemented in low-level sockets which make it 2.x to 3.x times faster
+than other commonly used tools.  On initial start, it would locate the name servers of the target domain and then enumerate
+subdomains according to a given list. For the purpose, two lists are currently provided, named `small` and `large` and directly be
+specified by the names with `-w, --wordlist` option. It is still in beta version and various errors are to be expected. 
+
+## Syntax
+Running Your First scan. Clone into the repository and launch the script: 
+```
+$ git clone https://github.com/hash3liZer/Subrake.git
+$ cd Subrake/
+$ python subrake.py -d [target.com] -w [small/large] [...options]
+```
+## Options
+```
+Syntax: 
+    $ python subrake -d shellvoide.com -w small     // SMALL wordlist scan
+    $ python subrake -d shellvoide.com -w large --threads 30
+
+Options:
+   Args               Description                      Default
+   -h, --help         Show this manual                  NONE
+   -d, --domain       Target domain. Possible
+                      example: [example.com]            NONE
+   -w, --wordlist     Wordlist for subdomains
+                      to test. Two internal wordlists
+                      can be specified as `small` and
+                      `large`.                          NONE
+   -t, --threads      Number of threads to spawn         25
+   -o, --output       Push discovered subdomains to
+                      an output file in csv format      NONE
+```
+
+## Examples
+Here are some of common examples:
+```
+$ python subrake.py -d shellvoide.com -w small
+$ python subrake.py -d google.com -w large -t 30
+$ python subrake.py -d starbucks.com -w large -t 30 -o /output.txt
+```