docs: relative links in README

Author: PaulRBerg

README.md

@@ -1,7 +1,7 @@
 # PRBMath [![GitHub Actions][gha-badge]][gha] [![Foundry][foundry-badge]][foundry] [![License: MIT][license-badge]][license]
 
-[gha]: https://github.com/PaulRBerg/prb-math/actions
-[gha-badge]: https://github.com/PaulRBerg/prb-math/actions/workflows/ci.yml/badge.svg
+[gha]: ../../actions
+[gha-badge]: ../../actions/workflows/ci.yml/badge.svg
 [foundry]: https://getfoundry.sh/
 [foundry-badge]: https://img.shields.io/badge/Built%20with-Foundry-FFDB1C.svg
 [license]: https://opensource.org/licenses/MIT
@@ -304,13 +304,12 @@ and `sqrt`.
 The main reason why PRBMath lags behind ABDKMath's `mul` and `div` functions is that it operates with 256-bit word sizes, and so it has to account for
 possible intermediary overflow. ABDKMath, on the other hand, operates with 128-bit word sizes.
 
-**Note**: I did not find a good way to automatically generate gas reports for PRBMath. See the
-[#134](https://github.com/PaulRBerg/prb-math/discussions/134) discussion for more details about this issue.
+**Note**: I did not find a good way to automatically generate gas reports for PRBMath. See the [#134](../../discussions/134) discussion for more
+details about this issue.
 
 ### PRBMath
 
-Gas estimations based on the [v2.0.1](https://github.com/PaulRBerg/prb-math/releases/tag/v2.0.1) and the
-[v3.0.0](https://github.com/PaulRBerg/prb-math/releases/tag/v3.0.0) releases.
+Gas estimations based on the [v2.0.1](../../releases/tag/v2.0.1) and the [v3.0.0](../../releases/tag/v3.0.0) releases.
 
 | SD59x18 | Min | Max   | Avg  |     | UD60x18 | Min  | Max   | Avg  |
 | ------- | --- | ----- | ---- | --- | ------- | ---- | ----- | ---- |
@@ -353,8 +352,7 @@ Gas estimations based on the v3.0 release of ABDKMath. See my [abdk-gas-estimati
 
 ## Contributing
 
-Feel free to dive in! [Open](https://github.com/PaulRBerg/prb-math/issues/new) an issue,
-[start](https://github.com/PaulRBerg/prb-math/discussions/new) a discussion or submit a PR.
+Feel free to dive in! [Open](../../issues/new) an issue, [start](../../discussions/new) a discussion or submit a PR.
 
 ### Pre Requisites
 
@@ -369,10 +367,10 @@ In addition, familiarity with [Solidity](https://soliditylang.org/) is requisite
 
 ### Set Up
 
-Clone this repository including submodules:
+Clone this repository:
 
 ```sh
-$ git clone --recurse-submodules -j8 [email protected]:PaulRBerg/prb-math.git
+$ git clone [email protected]:PaulRBerg/prb-math.git
 ```
 
 Then, inside the project's directory, run this to install the Node.js dependencies: