Adding initial name convention to contribution.md.

CONTRIBUTING.md

@@ -68,3 +68,37 @@ From the root directory running the following command will load default options
 ```
 astyle --options=options.astyle *.cc *.hh
 ```
+# Naming convention
+## File naming
+C++ files should end in `.cc` and header files in `.hh`.
+Template implementations should end in `.i.hh`.
+**File names should be all lowercase with no underscores.**
+
+## Class naming
+Classes should be **CamelCase**.
+```
+class CommandLine
+{
+};
+```
+Class members should be prefixed with **m** and be **lazyCamelCase**.
+```
+class CommandLine
+{
+private:
+  int mArgc;
+  char ** mArgv;
+};
+```
+Class methods should be **lazyCamelCase**.
+Class member getter methods should be the members name **lazyCamelCase**  `int argc() const`.
+```
+class Commandline
+{
+private:
+  int mArgc;
+public:
+  int argc() const;
+  int myMethod() const;
+};
+```