Update wordings of link

README.md

@@ -55,7 +55,7 @@ make local-install
 - `frontend/` directory is for frontend code.\
   See [README of frontend](./frontend/README.md) for more details.
 - `e2e/` directory contains end-to-end test code using `Cypress`.\
-  See [below command](#make-e2e-dev) for shortcut to run `cypress` in this project. Also can refer to the official document of `cypress` for further details.
+  See [make e2e-dev](#make-e2e-dev) for shortcut to run `cypress` in this project. Also can refer to the official document of `cypress` for further details.
 
 ### Useful Commands
 

backend/README.md

@@ -18,7 +18,7 @@ TypeScript, Node.js, Express.js, PostgreSQL
 
 ## Testing strategy
 
-Have unit tests that don't involve external dependencies and integration tests that involve PostgreSQL. See [below section](#useful-commands) for how to run them.
+Have unit tests that don't involve external dependencies and integration tests that involve PostgreSQL. See [Useful Commands](#useful-commands) for how to run them.
 
 ### Explanation for `createNull` convention
 
@@ -28,7 +28,7 @@ In this project, some classes have creation methods like `Xyz.create` and `Xyz.c
 
 ## Local Development
 
-See [this section in root README](../README.md#setup) for how to setup.
+See [Setup in root README](../README.md#setup) for how to setup.
 
 ### Useful Commands
 

frontend/README.md

@@ -24,7 +24,7 @@ Complete(delete) existing duty by clicking the tick icon button.
 
 ## Local Development
 
-See [this section in root README](../README.md#setup) for how to setup.
+See [Setup in root README](../README.md#setup) for how to setup.
 
 ### Useful Commands