Fix kramdown warnings in docs

doc/development/go_guide/index.md

@@ -452,7 +452,7 @@ If the scanner report is small, less than 35 lines, then feel free to [inline th
 
 #### Test Diffs
 
-The [go-cmp]<https://github.com/google/go-cmp> package should be used when comparing large structs in tests. It makes it possible to output a specific diff where the two structs differ, rather than seeing the whole of both structs printed out in the test logs. Here is a small example:
+The [go-cmp](https://github.com/google/go-cmp) package should be used when comparing large structs in tests. It makes it possible to output a specific diff where the two structs differ, rather than seeing the whole of both structs printed out in the test logs. Here is a small example:
 
 ```golang
 package main

doc/development/testing_guide/end_to_end/running_tests_that_require_special_setup.md

@@ -496,12 +496,12 @@ Tests that are tagged with `:mobile` can be run against specified mobile devices
 
 Running directly against an environment like staging is not recommended because Sauce Labs test logs expose credentials. Therefore, it is best practice and the default to use a tunnel.
 
-Tunnel installation instructions are here [https://docs.saucelabs.com/secure-connections/sauce-connect/installation]. To start the tunnel, after following the installation above, copy the run command in Sauce Labs > Tunnels (must be logged in to Sauce Labs with the credentials found in 1Password) and run in terminal.
+For tunnel installation instructions, read [Sauce Connect Proxy Installation](https://docs.saucelabs.com/secure-connections/sauce-connect/installation). To start the tunnel, after following the installation above, copy the run command in Sauce Labs > Tunnels (must be logged in to Sauce Labs with the credentials found in 1Password) and run in terminal.
 
 NOTE:
 It is highly recommended to use `GITLAB_QA_ACCESS_TOKEN` to speed up tests and reduce flakiness.
 
-`QA_REMOTE_MOBILE_DEVICE_NAME` can be any device name listed in [https://saucelabs.com/platform/supported-browsers-devices] under Emulators/simulators and the latest versions of Android or iOS. `QA_BROWSER` must be set to `safari` for iOS devices and `chrome` for Android devices.
+`QA_REMOTE_MOBILE_DEVICE_NAME` can be any device name listed in [Supported browsers and devices](https://saucelabs.com/platform/supported-browsers-devices) under Emulators/simulators and the latest versions of Android or iOS. `QA_BROWSER` must be set to `safari` for iOS devices and `chrome` for Android devices.
 
 1. To test against a local instance with a tunnel running, in `gitlab/qa` run: