doc: improve documentation

[StewartJingga]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 3739403348

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.0%) to 86.183%

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Totals
Change from base Build 3529274793:	0.0%
Covered Lines:	4965
Relevant Lines:	5761

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💛 - Coveralls

[sudo-suhas]

Please apply the following changes to fix the broken relative links:

diff --git a/docs/docs/installation.md b/docs/docs/installation.md
index 70123b0..0bd40a8 100644
--- a/docs/docs/installation.md
+++ b/docs/docs/installation.md
@@ -76,6 +76,6 @@ ## Serving
 \```
 
 ## Required Header/Metadata in API
-Compass has a concept of [User](../concepts/user.md). In the current version, all HTTP & gRPC APIs in Compass requires an identity header/metadata in the request. The header key is configurable but the default name is `Compass-User-UUID`.
+Compass has a concept of [User](concepts/user.md). In the current version, all HTTP & gRPC APIs in Compass requires an identity header/metadata in the request. The header key is configurable but the default name is `Compass-User-UUID`.
 
-Compass APIs also expect an additional optional e-mail header. This is also configurable and the default name is `Compass-User-Email`. The purpose of having this optional e-mail header is described in the [User](../concepts/user.md) section.
\ No newline at end of file
+Compass APIs also expect an additional optional e-mail header. This is also configurable and the default name is `Compass-User-Email`. The purpose of having this optional e-mail header is described in the [User](concepts/user.md) section.

Also, can drop --location --request GET from curl request examples.

[sudo-suhas]

Looks like we missed a broken link. It is breaking the docs build - https://github.com/odpf/compass/actions/runs/3820770546/jobs/6499318539#step:5:29. Raised a fix here - #193. Please suggest if we could link it to something else instead.