root readme update and added review02 for chapter12

Author: trapperdot00

Chapter12/README.md

@@ -29,3 +29,6 @@ Define a class `B2` with a pure virtual function `pvf()`. Define a class `D21`
 
 ## [Review 1](review/01.txt)
 What is an application domain?
+
+## [Review 2](review/02.txt)
+What are ideals for naming?

Chapter12/review/02.txt

@@ -0,0 +1,7 @@
+Logically different operations should have different names.
+Data member of property X should have a readout (getter)
+function named X(), and a writer (setter) function
+named set_X().
+The names of private members don't matter that much,
+meaningful naming of the user-facing interface members
+is important.

README.md

@@ -14,4 +14,5 @@
 ### [Chapter09](Chapter09/): Input and Output Streams
 ### [Chapter10](Chapter10/): A Display Model
 ### [Chapter11](Chapter11/): Graphics Classes
+### [Chapter12](Chapter12/): Class Design