fix: Fix two small bugs in the docs (#451)

## Description:
Fixes two small bugs in the docs

## Is this change user facing?
YES

---------

Co-authored-by: mieubrisse <mieubrisse@gmail.com>

README.md

@@ -6,7 +6,7 @@ What is Kurtosis?
 =================
 [Kurtosis](https://www.kurtosis.com) is a composable build system for multi-container test environments. Kurtosis makes it easier for developers to set up test environments that require dynamic setup logic (e.g. passing IPs or runtime-generated data between services) or programmatic data seeding. 
 
-To read more about "why Kurtosis?", go [here](https://docs.kurtosis.com/explanations/what-is-kurtosis).
+To read more about "why Kurtosis?", go [here](https://docs.kurtosis.com/#why-use-kurtosis).
 
 To read about the architecture, go [here](https://docs.kurtosis.com/explanations/architecture).
 
@@ -19,7 +19,7 @@ Running Kurtosis
 Follow the instructions [here](https://docs.kurtosis.com/install).
 
 ### Run
-Kurtosis create ephemeral multi-container environments called [enclaves][enclave] using [Starlark](https://docs.kurtosis.com/explanations/starlark). These can be bundled together into [packages](https://docs.kurtosis.com/reference/packages). Let's run one now:
+Kurtosis create ephemeral multi-container environments called [enclaves][enclave] using [Starlark](https://docs.kurtosis.com/concepts-reference/starlark). These can be bundled together into [packages](https://docs.kurtosis.com/concepts-reference/packages). Let's run one now:
 
 ```bash
 kurtosis run github.com/kurtosis-tech/awesome-kurtosis/redis-voting-app

docs/docusaurus.config.js

@@ -98,7 +98,7 @@ const config = {
             dropdownActiveClassDisabled: true,
           },
           {
-            href: 'https://github.com/kurtosis-tech/kurtosis/issues/new?assignees=leeederek&labels=docs&template=docs-issue.yml&title=%5BDocs%5D%3A+',
+            href: 'https://github.com/kurtosis-tech/kurtosis/issues/new?assignees=leeederek&labels=docs&template=docs-issue.yml',
             position: 'right',
             label: 'Report Docs Issue',
           },

docs/sidebars.js

@@ -50,7 +50,6 @@ const sidebars = {
                 {type: 'autogenerated', dirName: 'starlark-reference'}
             ]
         },
-        'client-libs-reference',
         {
             type: 'category',
             label: 'Concepts Reference',