update PR template

.github/PULL_REQUEST_TEMPLATE.md

@@ -10,16 +10,9 @@ ______
 
 For contributor use:
 
-- [ ] Targeted PR against `master` branch
+- [ ] Targeted PR against `main` branch
 - [ ] Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
-- [ ] Code follows the [standards mentioned here](https://github.com/onflow/flow-nft/blob/master/CONTRIBUTING.md#styleguides).
+- [ ] Code follows the [standards mentioned here](https://github.com/onflow/contract-updater/blob/master/CONTRIBUTING.md#styleguides).
 - [ ] Updated relevant documentation 
 - [ ] Re-reviewed `Files changed` in the Github PR explorer
-- [ ] Added appropriate labels 
-<!-- Please follow the below standard to update the version in package.json
-    - Major if there is a new smart contract introduced.
-    - Major if there is a breaking change that is introduced in the existing contract.
-    - Minor if there is a new feature addition within the existing smart contracts.
-    - Patch if there is a non breaking change in the existing smart contracts.
--->
-- [ ] Update the version in package.json when there is a change in the smart contracts
+- [ ] Added appropriate labels