Create guide.md

Author: 151ali

contributing/guide.md

@@ -0,0 +1,16 @@
+# Guidlines
+## Copyright Headers
+respect omnet++ headers in all `c++` sources and the licence file.
+```cpp
+/*
+ * BFT_draft.cc
+ *
+ *  Created on: Nov 9, 2020
+ *      Author: lina
+ */
+```
+## Use underscores, not dashes in file and folders names.
+Example: 
+- Use `DFT_v4.cc` instead of `DFT-v4.cc` or `DFTv4.cc` .
+- Use `DFT_v4` instead of `DFT-v4`.
+- Respect version order `DFT_v0`, `DFT_v1` ...