Add CGRTensor to docs

Include CGRTensor in the README and in the built docs.

Author: Zeldax64

README.md

@@ -95,6 +95,7 @@ Currently, the library supports the following HDC/VSA models:
 - [Holographic Reduced Representations (HRR)](https://torchhd.readthedocs.io/en/stable/generated/torchhd.HRRTensor.html)
 - [Fourier Holographic Reduced Representations (FHRR)](https://torchhd.readthedocs.io/en/stable/generated/torchhd.FHRRTensor.html)
 - [Binary Sparse Block Codes (B-SBC)](https://torchhd.readthedocs.io/en/stable/generated/torchhd.BSBCTensor.html)
+- [Modular Composite Representation (CGR)](https://torchhd.readthedocs.io/en/stable/generated/torchhd.CGRTensor.html)
 - [Modular Composite Representation (MCR)](https://torchhd.readthedocs.io/en/stable/generated/torchhd.MCRTensor.html)
 - [Vector-Derived Transformation Binding (VTB)](https://torchhd.readthedocs.io/en/stable/generated/torchhd.VTBTensor.html)
 

docs/torchhd.rst

@@ -10,7 +10,7 @@ This module consists of the basic hypervector generation functions and operation
 Basis-hypervector sets
 ----------------------------------
 
-.. autosummary:: 
+.. autosummary::
     :toctree: generated/
     :template: function.rst
 
@@ -20,7 +20,7 @@ Basis-hypervector sets
     level
     thermometer
     circular
-    
+
 
 Operations
 --------------------
@@ -51,7 +51,7 @@ Similarities
 .. autosummary::
     :toctree: generated/
     :template: function.rst
-    
+
     cosine_similarity
     dot_similarity
     hamming_similarity
@@ -87,6 +87,7 @@ VSA Models
     HRRTensor
     FHRRTensor
     BSBCTensor
+    CGRTensor
     MCRTensor
     VTBTensor
 
@@ -97,7 +98,7 @@ Utilities
 .. autosummary::
     :toctree: generated/
     :template: function.rst
-    
+
     ensure_vsa_tensor
     map_range
     value_to_index