Update README.md

Julia language support

README.md

@@ -4,7 +4,7 @@ Each oval represents a function, and each arrow indicates a function call.<br>
 In the diagram below, the main program is represented by node MAIN.  It calls 6 functions, one of which calls 9 other functions.<br>
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 callGraph statically generates a call graph image and displays it on screen.<br>
-Supported languages are: awk, bash, basic, dart, fortran, go, lua, javascript, kotlin, matlab, perl, pascal, php, python, R, raku, ruby, rust, scala, swift, and tcl.<br>
+Supported languages are: awk, bash, basic, dart, fortran, go, lua, javascript, julia, kotlin, matlab, perl, pascal, php, python, R, raku, ruby, rust, scala, swift, and tcl.<br>
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 c/c++/java are not supported, since their complex and varied syntax requires heavy machinery.<br>