Added the contibution file and fixes the file name (#152)

docs/resources/contribution/index.md

@@ -0,0 +1,37 @@
+---
+sidebar_position: 10
+title: Contribution Guide
+description: contribution guide
+---
+
+aelf is an [open source](https://github.com/aelfproject) and community driven project. This guide is aims to help anyone wants to contribute to the project.
+
+### Code Contribution
+
+You can always send pull requests to the Github repository.
+
+- Clone the [aelf repository](https://github.com/aelfproject/aelf/) from Github.
+- Make the required changes.
+- Send a pull request.
+
+Before making any change, please discuss it on the [Github issues](https://github.com/aelfproject/aelf/issues). In this way, no other developer will work on the same issue and your PR will have a better chance to be accepted.
+
+#### Bug Fixes & Enhancements
+
+You may want to fix a known bug or work on a planned enhancement. See [the issue list](https://github.com/aelfproject/aelf/issues) on Github.
+
+#### Feature Requests
+
+If you have a feature idea for the framework or modules, [create an issue](https://github.com/aelfproject/aelf/issues/new) on Github or attend to an existing discussion. Then you can implement it if it's embraced by the community.
+
+### Blog Posts & Tutorials
+
+If you decide to create some tutorials or blog posts on aelf, please inform us (by creating a [Github issue](https://github.com/aelfproject/aelf/issues)), so we may add a link to your tutorial/post in the official documentation and we can announce it on our [Twitter account](https://twitter.com/aelfblockchain).
+
+### Bug Report
+
+If you find any bug, please [create an issue on the Github repository](https://github.com/aelfproject/aelf/issues/new).
+
+### Thanks
+
+Thanks to ABP, we follow their contribute guides

docs/tools/chain-sdk/javascript-sdk/index.md

@@ -829,7 +829,7 @@ To use aelf SDK, you need:
 
 ## About contributing
 
-Read out [contributing guide]
+Read out [contributing guide](../../../resources/contribution/index.md)
 
 ## About Version