Update README.md

README.md

@@ -1,7 +1,24 @@
-Please download the benchmark from by https://huggingface.co/datasets/somethingone/PLocBench/blob/main/all_issues_with_pr_commit_comment_all_project_0922.pkl 
+## 1. Downloads
 
+Please download the benchmark from https://huggingface.co/datasets/somethingone/PLocBench/blob/main/all_issues_with_pr_commit_comment_all_project_0922.pkl 
 
-### Data Instances
+
+### 2. How to Use DataSet
+
+```
+import pickle
+filepath = "input the data path, e.g., all_issues_with_pr_commit_comment_all_project_0922.pkl"
+with open(filepath, 'rb') as file:
+    iss_list = pickle.load(file)
+    for ind, e_iss in enumerate(iss_list):
+        print(f"{ind} issue info is {e_iss['iss_html_url']}") # print issue html url
+        for featurename in e_iss:
+            print(f"{featurename}: {e_iss[featurename]}") # print feature_name: value for each issue
+```
+
+
+
+### 3. Data Instances
 An example of an issue is as follows:
 
 ```