Update README.md

Author: treangen

README.md

@@ -31,10 +31,10 @@ multi-aligner, Gingr, a dynamic visual platform, and harvest-tools, providing bo
   * Project url: http://github.com/marbl/parsnp
   * Language: C, C++, Python
   * OSX prebuilt binary: 
-     * https://github.com/marbl/parsnp/releases/tag/v1.0/parsnp-OSX64.gz
+     * https://github.com/marbl/parsnp/releases/download/v1.0/parsnp-OSX64.gz
      * MD5 sum: 08c19b4d12e8199b2ce098550b4100e6
   * Linux prebuilt binary: 
-     * https://github.com/marbl/parsnp/releases/tag/v1.0/parsnp-Linux64.gz
+     * https://github.com/marbl/parsnp/releases/download/v1.0/parsnp-Linux64.gz
      * MD5 sum: f82b6b9dae456fe9263ee6214b2633af
 
 2. **Gingr**
@@ -47,20 +47,20 @@ multi-aligner, Gingr, a dynamic visual platform, and harvest-tools, providing bo
   * Project url: http://github.com/marbl/gingr
   * Language: C++
   * OSX prebuilt binary: 
-     * https://github.com/marbl/gingr/releases/tag/v1.0/gingr-OSX64.app.zip
+     * https://github.com/marbl/gingr/releases/download/v1.0/gingr-OSX64.app.zip
      * MD5 sum: 84c8d3818b48656132b5adf9a125783d
   * Linux prebuilt binary: 
-     * https://github.com/marbl/gingr/releases/tag/v1.0/gingr-Linux64.gz
+     * https://github.com/marbl/gingr/releases/download/v1.0/gingr-Linux64.gz
      * MD5 sum: 3e4fdab0319be4c927b8738c2223f15b
 
 3. **Harvest tools**
   * Description: binary format and conversion utilities
   * Project url: http://github.com/marbl/harvest-tools
   * Language: C++, Python
   * OSX prebuilt binary: 
-     * https://github.com/marbl/harvest-tools/releases/tag/v1.0/harvesttools-OSX64.gz
+     * https://github.com/marbl/harvest-tools/releases/download/v1.0/harvesttools-OSX64.gz
      * MD5 sum: 4cc638e05c82bab24f2f68317347661e
   * Linux prebuilt binary: 
-     * https://github.com/marbl/harvest-tools/releases/tag/v1.0/harvesttools-Linux64.gz
+     * https://github.com/marbl/harvest-tools/releases/download/v1.0/harvesttools-Linux64.gz
      * MD5 sum: 4f41d17dd49eb8be7861a0325bed9910