docs: add FAQ

FAQ.md

@@ -0,0 +1,18 @@
+### $browser\_plugin is not working properly! Help!
+
+There is a known issue where WebKit1 and GTK3 does not work with plugins (e.g.,
+Flash). If you need Netscape-compatible plugins to work, use GTK2 or WebKit2.
+
+### WebKit2 isn't working!
+
+More development is needed to get WebKit2 support to be feature compatible in
+uzbl. Currently, WebKit1 is the best option. If you would like to use WebKit2,
+a non-exhaustive list of things that is known to not work at the moment
+includes:
+
+* Scrolling
+* Injecting JavaScript into the page
+* Cookie management
+
+For more specifics, search the [README](README.md) file for 'WebKit1' and
+'WebKit2'.

Makefile

@@ -254,6 +254,7 @@ install-uzbl-core: uzbl-core install-dirs
 	$(INSTALL) -m644 docs/*.md $(DOCDIR)/
 	$(INSTALL) -m644 src/config.h $(DOCDIR)/
 	$(INSTALL) -m644 README.md $(DOCDIR)/
+	$(INSTALL) -m644 FAQ.md $(DOCDIR)/
 	$(INSTALL) -m644 AUTHORS $(DOCDIR)/
 	$(INSTALL) -m755 uzbl-core $(INSTALLDIR)/bin/uzbl-core
 	$(INSTALL) -m644 uzbl-core.1 $(MANDIR)/man1/uzbl-core.1