Add Managing Projects with GNU Make (#3069)

free-programming-books.md

@@ -133,6 +133,7 @@
 * [Lisp](#lisp)
 * [Livecode](#livecode)
 * [Lua](#lua)
+* [Make](#make)
 * [Markdown](#markdown)
 * [Mathematica](#mathematica)
 * [MATLAB](#matlab)
@@ -1768,6 +1769,11 @@ Kerridge (PDF) (email address *requested*, not required)
 * [Programming in Lua (first edition)](https://www.lua.org/pil/contents.html)
 
 
+### Make
+
+* [Managing Projects with GNU Make](https://www.oreilly.com/openbook/make3/book/index.html) - Robert Mecklenburg
+
+
 ### Markdown
 
 * [Learn Markdown](https://www.gitbook.com/book/gitbookio/markdown/details) - Sammy P., Aaron O. (PDF) (EPUB) (MOBI)