Added config.toml, README and LICENSE

LICENSE

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+Copyright (c) 2020 interrupter <int@80h.dev>
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.

README

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+Gemserv is a gemini server written in rust. It supports vhosts and cgi. To run
+use "cargo run /path/to/config" 
+

config.toml

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+port = 1965
+# use "::" for ipv6 and ipv4 or "0.0.0.0" for ipv4 only
+host = "::"
+
+[[server]]
+hostname = "example.com"
+dir = "/path/to/serv"
+key = "/path/to/key"
+cert = "/path/to/cert"
+# cgi dir is optional
+cgi = "/path/to/cgi-bin/"
+
+[[server]]
+hostname = "example.net"
+dir = "/path/to/serv/"
+key = "/path/to/key"
+cert = "/path/to/cert"