Update README.md

Author: uenoku

README.md

@@ -23,11 +23,13 @@ $ ./build/bin/clang++ foo.cpp -O3 -mllvm --run-prediction
 $ lnt runtest test-suite  --sandbox ~/sandbox/ --cc $LLVM_HOME/bulid/bin/clang --cxx $LLVM_HOME/bulid/bin/clang -j16 --test-suite ~/llvm-test-suite/ --cppflags="-fexperimental-new-pass-manager -O3 -mllvm --dump-all-result
 $ python3 $LLVM_HOME/script/accmulate_data.py ~/sandbox/test-xxx
 ```
-This creates data.csv to the current directory
+This creates data.csv to the current directory. 
 
 ## Description of Addition
 1. I have added/modified following files:
-    * llvm/Analysis/MLPassResultPredictor.{h, cpp}
+    * `llvm/Analysis/MLPassResultPredictor.{h, cpp}`
+    
        This file defines Pass Result Predictor framework interfaces. `MLPassResultPredcitor<IRUnit,AnalysisManger>` has `predictPassResult` method, which takes pass name (i.e. SROA, GVN...), IR (i.e. Function, Module...) as inputs and returns the estimated result of the pass. In that file, we can define prediction algorithms seprately. In PassManager, the predictor is called before the pass execcution (currently only before function passes).  
-    * llvm/Analysis/PassReulstAnalysis.{h, cpp}
-       This defineds Analysis pass 
+    * `llvm/Analysis/PassReulstAnalysis.{h, cpp}`
+    
+       This defineds Analysis pass whose result is a boolean vector to store predictions from the model. Model definition is `llvm/Analysis/models/all_model/`.