package.json, the JS header comment, and README's license link all still said MIT after the project switched to GPL-3.0 in v0.3.0. Now consistent with the actual LICENSE file (GPL-3.0-or-later). Also fixed two typos in CHANGELOG.md.
package.json, the JS header comment, and README's license link all still said MIT after the project switched to GPL-3.0 in v0.3.0. Now consistent with the actual LICENSE file (GPL-3.0-or-later). Also fixed two typos in CHANGELOG.md.