fix(license): correct link to license on github

[skip ci]

Author: Byron

src/mako/api/lib/lib.mako

@@ -315,7 +315,7 @@ The **${util.library_name()}** library was generated by ${put_and(copyright.auth
 under the *${copyright.license_abbrev}* license.
 You can read the full text at the repository's [license file][repo-license].
 
-[repo-license]: ${cargo.repo_base_url + '/LICENSE.md'}
+[repo-license]: ${cargo.repo_base_url + 'blob/master/LICENSE.md'}
 </%def>