A simple package to add arrows and dashes
Symbol
Shortcut
—
\--\mdash\emdash–
\ndash\endash<200b> (zero-width space)
\zwsp•
\bul✓
\check§
\\sect→
\rarrow←
\larrow↑
\uarrow↓
\darrow⟷
\lrarrow\--\mdash\emdash\ndash\endash\zwsp\bul\check\\sect\rarrow\larrow\uarrow\darrow\lrarrow