Fix grammar and case of Ruby
MODIFY
doc/guides/mrbgems.md
doc/guides/mrbgems.md
@@ -60,7 +60,7 @@ mrbgem from the core or mgem-list.
Note that if more than one git-based gem has the same base name
(i.e. the default checkout directory name), it is (now) an error
-**UNLESS** they are have the same repository URL, branch name and
+**UNLESS** they have the same repository URL, branch name and
commit-id (i.e. checksum hash). You can bypass this by explicitly
importing your preferred version **first** and setting the
`canonical:` option to `true`:
@@ -160,7 +160,7 @@ GEM directory. A typical GEM specification could look like this for example:
MRuby::Gem::Specification.new('c_and_ruby_extension_example') do |spec|
spec.license = 'MIT'
spec.author = 'mruby developers'
- spec.summary = 'Example mrbgem using C and ruby'
+ spec.summary = 'Example mrbgem using C and Ruby'
end
```

Fix grammar and case of Ruby