[PATCH] www/mozilla-firefox - fix a couple of typos in the package README

Hello,

The below diff fixes a couple of typos I found.

Also, I _think_ there's at least one case in the README, where the
name of the software, rather than the binary/port name should be
used, i.e.: a case of "Firefox" vs. "${MOZILLA_PROJECT}"; but, after
going through the file in the CVS, I'm not sure any more. Probably
best if someone goes through the installed/rendered README, rather
than the CVS one, and sees if there's any "firefox" that could do
with capitalising ;^)

Cheers,

Raf

P.S. I'm not subscribed to ports@ mailing list so please CC me if need be.

Index: www/mozilla-firefox/pkg/README
===================================================================
RCS file: /cvs/ports/www/mozilla-firefox/pkg/README,v
diff -u -p -r1.37 README
--- www/mozilla-firefox/pkg/README 29 Oct 2024 12:40:10 -0000 1.37
+++ www/mozilla-firefox/pkg/README 4 Nov 2024 10:00:48 -0000
@@ -27,7 +27,7 @@ ${SYSCONFDIR}/${MOZILLA_PROJECT}/{unveil
As unveil() can't show non-existing dirs, it is recommended to manually
create ~/Downloads for files to be properly saved in this directory.

-Starting ${MOZILLA_PROJECT} should create this dir though, but it wont be available
+Starting ${MOZILLA_PROJECT} should create this dir though, but it won't be available
for downloads until it's restarted.

3rd-Party MIME Handlers
@@ -119,7 +119,7 @@ device e.g.:

# chown youruser /dev/video0

-Screen sharing needs shmget() which isnt available when pledge() is active, so
+Screen sharing needs shmget() which isn't available when pledge() is active, so
you will have to disable pledge for the main process.

KerberosV support
@@ -148,7 +148,7 @@ are enabled.

Similarly, the rust-based WebRender compositor can be enabled by setting
MOZ_WEBRENDER=1 in the environment, or by switching the about:config
-gfx.webrender.enabled knob to true. Check it is enabled in the 'Features'
+gfx.webrender.enabled knob to true. Check if it is enabled in the 'Features'
section of about:support. For this feature, WebGL2 is necessary, so your
hardware must support at least OpenGL 4.