Pinède (which means pine forest in French) is a modpack for Minecraft 1.7.10 focused primarily on plants, exploration, and fantasy elements, such as dungeons and weaponry. For a full list of mods, see here.
Type in the modpack name (Pinède) or paste the following url into the search box.
Finally, click Install at the bottom right of the launcher after you select Pinède from the list on the left. The launcher will handle everything else!