Update CONTRIBUTING.md

CONTRIBUTING.md

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+Please feel free to open a pull request if you know of a code analysis tool that is not mentioned here.   
+
+### General Format
+
+```Markdown
+* [Resource Name](https://github.com/author/project-name) - A short, but meaningful description.
+```
+
+e.g.:
+
+```Markdown
+* [A Brief History of JIT Compilation, J. Aycock](http://eecs.ucf.edu/~dcm/Teaching/COT4810-Spring2011/Literature/JustInTimeCompilation.pdf) - An examination of JIT Compilation, its constraints, systems and body of work from 1960–2000.
+```
+
+### Special, Topic-Specific, Format
+
+All books and research papers should have the authors listed in its name following the format `J. Smith` if the author's name is `John Smith`, e.g.: 
+
+```Markdown
+[A Brief History of JIT Compilation, J. Aycock](http://.../)
+```
+
+### Ordering
+
+Please make sure to keep the alphabetical, case-insensitive ordering of the tools.
+
+
+**Thanks for helping out!** :tada: