[Doc] Convert docs to use colon fences (#12471)

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

docs/source/index.md

@@ -1,13 +1,13 @@
 # Welcome to vLLM
 
-```{figure} ./assets/logos/vllm-logo-text-light.png
+:::{figure} ./assets/logos/vllm-logo-text-light.png
 :align: center
 :alt: vLLM
 :class: no-scaled-link
 :width: 60%
-```
+:::
 
-```{raw} html
+:::{raw} html
 <p style="text-align:center">
 <strong>Easy, fast, and cheap LLM serving for everyone
 </strong>
@@ -19,7 +19,7 @@
 <a class="github-button" href="https://github.com/vllm-project/vllm/subscription" data-icon="octicon-eye" data-size="large" aria-label="Watch">Watch</a>
 <a class="github-button" href="https://github.com/vllm-project/vllm/fork" data-icon="octicon-repo-forked" data-size="large" aria-label="Fork">Fork</a>
 </p>
-```
+:::
 
 vLLM is a fast and easy-to-use library for LLM inference and serving.
 
@@ -58,7 +58,7 @@ For more information, check out the following:
 
 % How to start using vLLM?
 
-```{toctree}
+:::{toctree}
 :caption: Getting Started
 :maxdepth: 1
 
@@ -67,11 +67,11 @@ getting_started/quickstart
 getting_started/examples/examples_index
 getting_started/troubleshooting
 getting_started/faq
-```
+:::
 
 % What does vLLM support?
 
-```{toctree}
+:::{toctree}
 :caption: Models
 :maxdepth: 1
 
@@ -79,11 +79,11 @@ models/generative_models
 models/pooling_models
 models/supported_models
 models/extensions/index
-```
+:::
 
 % Additional capabilities
 
-```{toctree}
+:::{toctree}
 :caption: Features
 :maxdepth: 1
 
@@ -96,11 +96,11 @@ features/automatic_prefix_caching
 features/disagg_prefill
 features/spec_decode
 features/compatibility_matrix
-```
+:::
 
 % Details about running vLLM
 
-```{toctree}
+:::{toctree}
 :caption: Inference and Serving
 :maxdepth: 1
 
@@ -113,11 +113,11 @@ serving/engine_args
 serving/env_vars
 serving/usage_stats
 serving/integrations/index
-```
+:::
 
 % Scaling up vLLM for production
 
-```{toctree}
+:::{toctree}
 :caption: Deployment
 :maxdepth: 1
 
@@ -126,21 +126,21 @@ deployment/k8s
 deployment/nginx
 deployment/frameworks/index
 deployment/integrations/index
-```
+:::
 
 % Making the most out of vLLM
 
-```{toctree}
+:::{toctree}
 :caption: Performance
 :maxdepth: 1
 
 performance/optimization
 performance/benchmarks
-```
+:::
 
 % Explanation of vLLM internals
 
-```{toctree}
+:::{toctree}
 :caption: Design Documents
 :maxdepth: 2
 
@@ -151,11 +151,11 @@ design/kernel/paged_attention
 design/mm_processing
 design/automatic_prefix_caching
 design/multiprocessing
-```
+:::
 
 % How to contribute to the vLLM project
 
-```{toctree}
+:::{toctree}
 :caption: Developer Guide
 :maxdepth: 2
 
@@ -164,11 +164,11 @@ contributing/profiling/profiling_index
 contributing/dockerfile/dockerfile
 contributing/model/index
 contributing/vulnerability_management
-```
+:::
 
 % Technical API specifications
 
-```{toctree}
+:::{toctree}
 :caption: API Reference
 :maxdepth: 2
 
@@ -177,18 +177,18 @@ api/engine/index
 api/inference_params
 api/multimodal/index
 api/model/index
-```
+:::
 
 % Latest news and acknowledgements
 
-```{toctree}
+:::{toctree}
 :caption: Community
 :maxdepth: 1
 
 community/blog
 community/meetups
 community/sponsors
-```
+:::
 
 ## Indices and tables