fix mixed content warning

Author: Kevin Turney

app/utils/api.js

@@ -15,7 +15,9 @@ const getProfile = username => {
 };
 
 const getRepos = username => {
-  return axios.get('http://api.github.com/users/' + username + '/repos' + params + '&per_page=100');
+  return axios.get(
+    'https://api.github.com/users/' + username + '/repos' + params + '&per_page=100',
+  );
 };
 
 const getStarCount = repos => {