Add pigeon, a PEG parser generator for Go
diff --git a/Projects.md b/Projects.md
index 90d35c7..55fd0e0 100644
--- a/Projects.md
+++ b/Projects.md
@@ -1448,6 +1448,7 @@
   * [NTemplate](https://github.com/yohcop/ntemplate.go) - Nested Templates
   * [parse](https://github.com/rymis/parse) - PEG parser that uses reflection to define grammar
   * [peg](https://github.com/badgerodon/peg) - Parsing Expression Grammer Parser
+  * [pigeon](https://github.com/mna/pigeon) - Parsing Expression Grammar (PEG) Parser generator for Go
   * [plural](https://github.com/rickb777/plural) - No-fuss plurals for formatting both countable and continuous ranges of values.
   * [polyglot](https://github.com/lxn/polyglot) - String translation utilities for Go
   * [pretty.go](https://github.com/kr/pretty.go) - Pretty-printing for go values