Use the releases link for the version of minecraft you are running and download the last file if you want the latest for that version.
Edit:
After you download the version you want then load up minecraft, go to the texturepack section and choose open folder.
Then just copy or drag the downloaded file in there and you will be able to choose it ingame.
Edit:
After you download the version you want then load up minecraft, go to the texturepack section and choose open folder.
Then just copy or drag the downloaded file in there and you will be able to choose it ingame.