some more details in README.md

README.md

@@ -11,7 +11,7 @@ You start the server using:
 If PORT is not specified, it will bind on port 70. If GOPHERDIR is not
 provided, it defaults to "./". Before starting `gosher` you might need
 to modify the values of the variables `NETCAT` and `STYLE` in `gosher`
-(see "Which netca?" below).
+(see "Which netcat?" below).
 
 If the selector is a directory, `gosher` will look for a file named
 `gophermap` to render the submenu. If a `gophermap` does not exist,
@@ -26,23 +26,26 @@ set of options. For the sake of using `gosher`, the main issue is
 whether your `netcat` implementation does exit or not when its standard
 input gets closed.  Notably, the original `netcat` implementation by
 hobbit@avian.org does **not** exit, while other common implementations
-(OpenBSD `netcat`, `ncat` from the nmap project, and GNU `netcat`).  The
-current version of `gosher` can work with different implementations of
-`netcat`, provided that the variable `NETCAT` points to the `netcat`
-version you want to use, and that the variable `STYLE` in `gosher` is set
-correctly. Please check below what is the recommended combination for
-your version of `netcat`:
-
-	+----------------+--------+
-	| netcat version | STYLE  |
-	+----------------+--------+
-	|  traditional   | 'fork' |
-	+----------------+--------+
-	|  OpenBSD       | 'pipe' |
-	+----------------+--------+
-	|  ncat          | 'pipe' |
-	+----------------+--------+
-
+(OpenBSD `netcat`, `ncat` from the nmap project, and GNU `netcat`)
+normally do.  The current version of `gosher` can work with different
+implementations of `netcat`, provided that the variable `NETCAT` points
+to the `netcat` version you want to use, and that the variable `STYLE`
+in `gosher` is set correctly. In particular, `STYLE` can pe set equal to
+either 'pipe' or 'fork'. Please check below what is the recommended
+combination for your version of `netcat`:
+
+	+----------------+--------------+--------------+
+	| netcat version | STYLE='fork' | STYLE='pipe' |
+	+----------------+--------------+--------------+
+	|  traditional   |      YES     |      NO      |
+	+----------------+--------------+--------------+
+	|  OpenBSD       |      NO      |      YES     |
+	+----------------+--------------+--------------+
+	|  ncat          |      YES     |      YES     |
+	+----------------+--------------+--------------+
+
+**N.B.: Using STYLE='pipe' is preferable, since the '-c' option used by
+the 'fork' mode is a potential security risk**
 
 ## Why `gosher`?