add v2 devel README

README.md

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+# Polr
+#####v2 Devel
+
+:aerial_tramway: A modern, minimalist, and lightweight URL shortener.
+
+
+
+[![GitHub issues](https://img.shields.io/github/issues/cydrobolt/polr.svg)]()
+[![GitHub license](https://img.shields.io/github/license/cydrobolt/polr.svg)]()
+[![Github Releases](https://img.shields.io/github/downloads/cydrobolt/polr/latest/total.svg)]()
+[![GitHub release](https://img.shields.io/github/release/cydrobolt/polr.svg)]()
+
+
+
+Welcome to Polr's 2.0 development branch. 
+Please keep in mind 2.0 is pre-alpha, and should not be used in production. This version of Polr break existing 0.x and 1.x installations, but migrations will be provided. 
+
+Once 2.0 is complete, it will supercede the current stable version of Polr, but the latest 1.x version will continue to be available as a legacy release for users who cannot make the switch to 2.0 due to their host or do not meet the new server requirements.
+
+Polr 2.0 moves away from `mysqli`, rather taking on `PDO` with `Eloquent`. Routing and autoloading will be done with `composer` and the Lumen web framework. Although unlikely, this change may cause those on shared hosting to be unable to install Polr.
+
+####License
+
+
+    Copyright (C) 2015 Chaoyi Zha
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.