Update homepage link

Author: przemyslawzalewski

package.json

@@ -44,7 +44,7 @@
   "bugs": {
     "url": "https://github.com/sandstreamdev/std/issues"
   },
-  "homepage": "https://github.com/sandstreamdev/std#readme",
+  "homepage": "https://github.com/sandstreamdev/std",
   "devDependencies": {
     "@babel/core": "^7.7.5",
     "@babel/preset-env": "^7.7.6",