Update rollup config to use polar-bear name

config/rollup.config.browser.cjs.js

@@ -3,6 +3,6 @@ import config from './rollup.config'
 export default config({
   output: {
     format: 'cjs',
-    file: 'lib/turndown-plugin-gfm.browser.cjs.js'
+    file: 'lib/turndown-plugin-polar-bear.browser.cjs.js'
   }
 })

config/rollup.config.browser.es.js

@@ -3,6 +3,6 @@ import config from './rollup.config'
 export default config({
   output: {
     format: 'es',
-    file: 'lib/turndown-plugin-gfm.browser.es.js'
+    file: 'lib/turndown-plugin-polar-bear.browser.es.js'
   }
 })

config/rollup.config.cjs.js

@@ -3,6 +3,6 @@ import config from './rollup.config'
 export default config({
   output: {
     format: 'cjs',
-    file: 'lib/turndown-plugin-gfm.cjs.js'
+    file: 'lib/turndown-plugin-polar-bear.cjs.js'
   }
 })

config/rollup.config.es.js

@@ -3,6 +3,6 @@ import config from './rollup.config'
 export default config({
   output: {
     format: 'es',
-    file: 'lib/turndown-plugin-gfm.es.js'
+    file: 'lib/turndown-plugin-polar-bear.es.js'
   }
 })

config/rollup.config.iife.js

@@ -3,6 +3,6 @@ import config from './rollup.config'
 export default config({
   output: {
     format: 'iife',
-    file: 'dist/turndown-plugin-gfm.js'
+    file: 'dist/turndown-plugin-polar-bear.js'
   }
 })

config/rollup.config.js

@@ -1,7 +1,7 @@
 export default function (config) {
   return {
-    name: 'turndownPluginGfm',
-    input: 'src/gfm.js',
+    name: 'turndownPluginPolarBear',
+    input: 'src/polar-bear.js',
     output: config.output
   }
 }