*: add more examples

Author: gyuho

README.md

@@ -5,6 +5,12 @@
 
 protodoc generates Protocol Buffer documentation.
 
+```
+go get -v -u github.com/coreos/protodoc
+
+prodoc ./parse/testdata --language-options="Go,C++,Java,Python" --title="testdata" --target-path="./sample.md"
+```
+
 Note that parser only understands the minimum syntax
 of Protocol Buffer (just enough to generate documentation).
 

main.go

@@ -18,9 +18,10 @@
 //	protodoc [flags]
 //
 //	Flags:
-//	-o, --languags value   language options in field descriptions (default [Go,C++,Java,Python])
-//	-p, --target-path string       file path to save the documentation
-//	-t, --title string             title of documentation
+//	-h, --help                 help for protodoc
+//	-o, --languages value      language options in field descriptions (default [Go,C++,Java,Python])
+//	-p, --target-path string   file path to save the documentation
+//	-t, --title string         title of documentation
 //
 package main