Added README

README

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+# CrossGen #
+
+Very simple tool for generating crosswords. *Almost* course work.
+
+### Features ###
+
+1. Supports many of languages if dictionary contains lines like
+```
+    WORD - DESCRIPTION
+```
+2. Supports any grid that have format like
+```
+    ++++
+    +--+
+    +--+
+    ++++
+```
+
+### Dependecies ###
+Only wxWidgets.
+
+### To-Do list ###
+
+* [ ] Progress indication
+* [ ] Customiztion
+* [ ] Refactoring
+* [ ] Optimizations of generating (