Used MD links in README.md

Author: cartant

README.md

@@ -123,8 +123,8 @@ MIT
 # Changelog
 
 * 1.0.4 - Fixed numerous bugs:
-    * Refactored to use canonical file names, fixing #122, #135, #148, #150 and #161.
-    * Refactored to avoid having to infer the TypeScript root, fixing #152.
+    * Refactored to use canonical file names, fixing [#122](//github.com/TypeStrong/tsify/issues/122), [#135](//github.com/TypeStrong/tsify/issues/135), [#148](//github.com/TypeStrong/tsify/issues/148), [#150](//github.com/TypeStrong/tsify/issues/150) and [#161](//github.com/TypeStrong/tsify/issues/161).
+    * Refactored to avoid having to infer the TypeScript root, fixing [#152](//github.com/TypeStrong/tsify/issues/152).
     * Misconfiguration of `tsify` as a transform now results in an explicit error.
     * Internal errors that previously went unreported are now emitted to Browserify.
 * 1.0.3 - Fixed a bug introduced in 1.0.2 (that resulted in the `target` being set to `ES3`).