🐛 Fix handling multiple section headers (#57)

README.md

@@ -331,12 +331,6 @@ So, the commits will still be shown as made by `github-actions`.
 
 * ✏️ Fix typo in syntax for using the GitHub Action tag directly (instead of with Docker) in README. PR [#39](https://github.com/tiangolo/latest-changes/pull/39) by [@art049](https://github.com/art049).
 
-#### Internal
-
-* ⬆ Bump docker/setup-buildx-action from 1 to 3. PR [#53](https://github.com/tiangolo/latest-changes/pull/53) by [@dependabot[bot]](https://github.com/apps/dependabot).
-* ⬆ Bump docker/build-push-action from 2 to 5. PR [#52](https://github.com/tiangolo/latest-changes/pull/52) by [@dependabot[bot]](https://github.com/apps/dependabot).
-* ⬆ Bump docker/login-action from 1 to 3. PR [#51](https://github.com/tiangolo/latest-changes/pull/51) by [@dependabot[bot]](https://github.com/apps/dependabot).
-
 ### 0.1.0
 
 #### Features

latest_changes/main.py

@@ -108,11 +108,13 @@ def generate_content(
     sections: list[SectionContent] = []
     sectionless_content = ""
     for label in settings.input_labels:
-        label_match = re.search(label.header, release_content)
+        label_match = re.search(label.header, release_content, flags=re.MULTILINE)
         if not label_match:
             continue
         next_label_match = re.search(
-            settings.input_next_section_start, release_content[label_match.end() :]
+            settings.input_next_section_start,
+            release_content[label_match.end() :],
+            flags=re.MULTILINE,
         )
         label_section_end = (
             len(release_content)
@@ -158,20 +160,19 @@ def generate_content(
     new_release_content = ""
     if sectionless_content:
         new_release_content = f"{sectionless_content}"
-    updated_content = "\n\n".join(
-        [
-            f"{section.header}\n\n{section.content}"
-            for section in new_sections
-            if section.content
-        ]
-    )
+    use_sections = [
+        f"{section.header}\n\n{section.content}"
+        for section in new_sections
+        if section.content
+    ]
+    updated_content = "\n\n".join(use_sections)
     if new_release_content:
         if updated_content:
             new_release_content += f"\n\n{updated_content}"
     else:
         new_release_content = updated_content
 
-    new_content = f"{pre_header_content}\n\n{new_release_content}\n\n{post_release_content}".strip()
+    new_content = f"{pre_header_content}\n\n{new_release_content}\n\n{post_release_content}".strip() + "\n"
     return new_content