fix READMEs; add screenshot;

Qt_EQL/README.txt

@@ -10,13 +10,10 @@ See "trafficlight/" for an example of integrating a Qt/C++ application.
 NOTES
 =====
 
-This offers the same possibilities as found in the "Qt_EQL/" example,
-but with a better, more dynamic workflow, and without the restriction of
-"CONFIG += no_keywords" in your "*.pro" file.
-
-So, integrating any existing Qt/C++ project is straightforward, since you can
-call any property/method/slot/signal of any Qt class (see QFIND-CHILD,
-QFIND-CHILDREN, QFUN+).
+Integrating with existing Qt/C++ projects should be straightforward, since
+you can call all standard methods/slots/signals of any Qt class (see
+QFIND-CHILD, QFIND-CHILDREN, QFUN+), and additionally make your own C++
+functions callable by declaring them Q_INVOKABLE.
 
 Calling Lisp from C++ through "eql_fun()" is easy, and you can use any Qt
 class/type supported by EQL, see examples in "cpp_calling_lisp/lib.cpp".

examples/8-OpenGL/README.txt

@@ -1,3 +1,5 @@
 You'll need cl-opengl (see Quicklisp)
 
-Run it: eql run.lisp
+Run it:
+
+    eql5 run.lisp