docs: fix all broken cross-reference links

docs/01-rainbow-triangle.md

@@ -13,7 +13,7 @@ blending the three vertex colors proportionally to their distance. The result
 is a smooth rainbow gradient across a single primitive. We do not need a texture,
 a colormap, or a fragment shader with any branching — just three colored
 vertices and the default linear interpolation the [rasterizer](concepts/GLOSSARY.md#rasterizer)
-applies to every [varying](concepts/GLOSSARY.md#varying).
+applies to every [interpolated value](concepts/GLOSSARY.md#interpolation).
 
 If you haven't read the [concept overview](concepts/graphics-pipeline.md), do so
 now. [Coordinate systems](concepts/coordinate-systems.md) explains how the GPU
@@ -242,10 +242,9 @@ struct State {
   (e.g., after a compositor restart or display hotplug), recovery requires
   reconfiguring the swapchain with the window's live size — and that requires
   holding a reference to the window itself.
-- **`pipeline`** — the compiled [render pipeline](concepts/GLOSSARY.md#render-pipeline).
+- **`pipeline`** — the compiled [render pipeline](concepts/GLOSSARY.md#pipeline).
   A render pipeline is an immutable configuration combining a shader, a vertex
-  buffer layout, a primitive topology, and a [color target](concepts/GLOSSARY.md#color-target)
-  setup. Switching pipelines mid-frame is expensive; most applications use a few
+  buffer layout, a primitive topology, and a color target setup. Switching pipelines mid-frame is expensive; most applications use a few
   pipelines and change them between draw calls.
 - **`vertex_buffer`** — GPU memory holding our vertex data. The GPU reads
   position and color data directly from this buffer during the vertex shader
@@ -436,7 +435,7 @@ to a `VkQueue`.
 **Step 5 — SurfaceConfiguration:** This allocates the
 [swapchain](concepts/GLOSSARY.md#swapchain) [framebuffers](concepts/GLOSSARY.md#framebuffer).
 We negotiate the pixel format with the driver (preferring an
-[sRGB](concepts/GLOSSARY.md#srgb) format for correct color display), pick the
+[sRGB](concepts/GLOSSARY.md) format for correct color display), pick the
 window dimensions (clamped to at least 1x1 to allow minimize-and-restore on some
 platforms), and select the [present mode](concepts/GLOSSARY.md#present-mode).
 `PresentMode::Mailbox` is a triple-buffered present mode that provides
@@ -684,8 +683,8 @@ const VERTICES: &[Vertex] = &[
 - **CCW winding order:** The vertices are listed counter-clockwise:
   red → blue → green. In a standard right-handed coordinate system, connecting
   vertices in this sequence traces the triangle counter-clockwise. This
-  determines which face is "front" and which is "back" — critical for
-  [culling](concepts/GLOSSARY.md#rasterizer) and correct normal computation.
+   determines which face is "front" and which is "back" — critical for
+   [culling](concepts/GLOSSARY.md) and correct normal computation.
 
 ### Buffer Upload
 
@@ -1103,7 +1102,7 @@ color_attachments: &[Some(wgpu::RenderPassColorAttachment {
 **`RenderPassColorAttachment` has exactly 4 fields:**
 
 - **`view: &texture_view`** — the framebuffer we draw into. Must match the
-  color target format in the [render pipeline](concepts/GLOSSARY.md#render-pipeline).
+  color target format in the [render pipeline](concepts/GLOSSARY.md#pipeline).
 - **`depth_slice: None`** — only used for 3D texture slices. Not applicable
   to 2D rendering.
 - **`resolve_target: None`** — only used for MSAA resolve. When multisampling
@@ -1134,7 +1133,7 @@ that pass the depth test). Useful for visibility-based culling.
 ### Binding State and Drawing
 
 **`render_pass.set_pipeline(&self.pipeline)`** — Tells the GPU which
-[render pipeline](concepts/GLOSSARY.md#render-pipeline) to use for subsequent
+[render pipeline](concepts/GLOSSARY.md#pipeline) to use for subsequent
 draw calls. The pipeline encapsulates the shader programs, vertex format,
 primitive topology, and output configuration. Must be set before any draw call
 in a render pass. Switching pipelines mid-pass is expensive and should be
@@ -1341,7 +1340,7 @@ each piece does:
   Each layer adds a capability: driver connection, window binding, GPU selection,
   resource management, and swapchain allocation.
 
-- **The [render pipeline](concepts/GLOSSARY.md#pipeline-render):** Shaders,
+- **The [render pipeline](concepts/GLOSSARY.md#pipeline):** Shaders,
   topology, and vertex layout compiled into a GPU configuration. Created once,
   reused every frame. Expensive to create, cheap to execute.