[misc] Add latex .bib file (#1204)

Author: NANASHI0X74

README.md

@@ -16,3 +16,7 @@ should take place in
 [the WebAssembly design repository](https://github.com/WebAssembly/design)
 first, so that this spec repository can remain focused. And please follow the
 [guidelines for contributing](Contributing.md).
+
+# citing
+
+For citing WebAssembly in LaTeX, use [this bibtex file](wasm-specs.bib).

wasm-specs.bib

@@ -0,0 +1,9 @@
+@report{WebAssemblyCoreSpecification,
+  title = {{WebAssembly Core Specification}},
+  editor = {Rossberg, Andreas},
+  date = {2019-12-05},
+  institution = {{W3C}},
+  url = {https://www.w3.org/TR/wasm-core-1/},
+  langid = {english},
+  note = {https://webassembly.github.io/spec/core/_download/WebAssembly.pdf}
+}