Merge pull request #41 from softdevteam/add_rust_gc

Add rust-gc reference

Author: ltratt

softdev.bib

@@ -2148,3 +2148,12 @@ @book{gudeman1995representing
     month = Oct,
     publisher= {University of Arizona, Tucson}
 }
+
+ - year is from first git commit https://github.com/Manishearth/rust-gc
+@misc{manish2015rustgc,
+    title = {rust-gc},
+    link = {https://github.com/Manishearth/rust-gc/},
+    note = {Accessed: 2018-08-15},
+    year = {2015},
+    author = {Manish Goregaokar},
+}