Bug 1598971 - Fix spell lint failures. a=lint-fix CLOSED TREE

--HG--
extra : amend_source : 7f3391519a009242cabef46a5ebe50d451aee8b8

remote/doc/Usage.md

@@ -49,7 +49,7 @@ Other examples of address specs include:
 The use of `localhost` in the first example above will, depending
 on whether the system supports IPv6, bind to both IP layers and
 accept incoming connections from either IPv4 or IPv6.  The second
-(`127.0.0.1`) and third (`[::1]`) examples will, respecitvely,
+(`127.0.0.1`) and third (`[::1]`) examples will, respectively,
 force the HTTP to listen on IPv4 or IPv6.
 
 The fourth example will use the default hostname, `localhost`, to

testing/marionette/doc/Testing.md

@@ -56,7 +56,7 @@ In case you want to run the tests with another binary like [Firefox Nightly]:
 	% ./mach marionette-test --binary /path/to/nightly/firefox TEST
 
 When working on Marionette it is often useful to surface the stdout
-from Gecko, which can be achived using the `--gecko-log` option.
+from Gecko, which can be achieved using the `--gecko-log` option.
 See <Debugging.html> for usage instructions, but the gist is that
 you can redirect all Gecko output to stdout: