Improved newline support for markdown annotated tooltips: two spaces followed by newline will now produce newline within a paragraph

src/tooltips.cpp

@@ -741,6 +741,11 @@ void Tooltip::insert_markdown(const std::string &input) {
         i += 5;
         continue;
       }
+      else if(starts_with(input, i, "  \n")) {
+        partial += '\n';
+        i += 2;
+        continue;
+      }
       else if(insert_code() || insert_emphasis() || insert_strikethrough() || insert_link())
         continue;
       if(input[i] == '\n' && i + 1 < to)

tests/tooltips_test.cpp

@@ -65,6 +65,10 @@ int main() {
     auto tooltip = get_markdown_tooltip("test  test");
     g_assert(tooltip->buffer->get_text() == "test  test");
   }
+  {
+    auto tooltip = get_markdown_tooltip("test  \ntest");
+    g_assert(tooltip->buffer->get_text() == "test\ntest");
+  }
   {
     auto tooltip = get_markdown_tooltip("test\n\n---\ntest");
     g_assert(tooltip->buffer->get_text() == "test\n\n---\ntest");