fix history links (#4866)

Author: samuelcolvin

docs/build/main.py

@@ -10,7 +10,7 @@
 
 def main() -> int:
     history = (PROJECT_ROOT / 'HISTORY.md').read_text()
-    history = re.sub(r'#(\d+)', r'[#\1](https://github.com/pydantic/pydantic/issues/\1)', history)
+    history = re.sub(r'(\s)#(\d+)', r'\1[#\2](https://github.com/pydantic/pydantic/issues/\2)', history)
     history = re.sub(r'(\s)@([\w\-]+)', r'\1[@\2](https://github.com/\2)', history, flags=re.I)
     history = re.sub('@@', '@', history)
 

setup.py

@@ -60,7 +60,7 @@ def extra(self):
 THIS_DIR = Path(__file__).resolve().parent
 try:
     history = (THIS_DIR / 'HISTORY.md').read_text(encoding='utf-8')
-    history = re.sub(r'#(\d+)', r'[#\1](https://github.com/pydantic/pydantic/issues/\1)', history)
+    history = re.sub(r'(\s)#(\d+)', r'\1[#\2](https://github.com/pydantic/pydantic/issues/\2)', history)
     history = re.sub(r'( +)@([\w\-]+)', r'\1[@\2](https://github.com/\2)', history, flags=re.I)
     history = re.sub('@@', '@', history)