Add missing docs files to site navigation

[zachgk]

No description provided.

[codecov-commenter]

Codecov Report

Merging #1263 (db74b7a) into master (5907d50) will increase coverage by 1.74%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #1263      +/-   ##
============================================
+ Coverage     70.23%   71.97%   +1.74%     
- Complexity     5063     5111      +48     
============================================
  Files           485      473      -12     
  Lines         22262    21909     -353     
  Branches       2375     2345      -30     
============================================
+ Hits          15635    15769     +134     
+ Misses         5414     4935     -479     
+ Partials       1213     1205       -8     

Impacted Files	Coverage Δ
.../src/main/java/ai/djl/ml/xgboost/XgbNDManager.java	75.51% <0.00%> (-6.31%)	⬇️
...pi/src/main/java/ai/djl/util/ClassLoaderUtils.java	50.00% <0.00%> (-2.95%)	⬇️
api/src/main/java/ai/djl/ndarray/NDList.java	65.35% <0.00%> (-2.65%)	⬇️
...ain/java/ai/djl/onnxruntime/engine/OrtNDArray.java	70.37% <0.00%> (-2.36%)	⬇️
...in/java/ai/djl/repository/zoo/BaseModelLoader.java	77.23% <0.00%> (-1.10%)	⬇️
...n/java/ai/djl/paddlepaddle/engine/PpNDManager.java	87.50% <0.00%> (-1.08%)	⬇️
...n/java/ai/djl/onnxruntime/engine/OrtNDManager.java	72.22% <0.00%> (-0.76%)	⬇️
.../main/java/ai/djl/paddlepaddle/engine/PpModel.java	60.41% <0.00%> (-0.46%)	⬇️
...c/main/java/ai/djl/pytorch/engine/PtNDManager.java	93.18% <0.00%> (-0.16%)	⬇️
...ne/src/main/java/ai/djl/dlr/engine/DlrNDArray.java	66.66% <0.00%> (ø)
... and 48 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 5907d50...db74b7a. Read the comment docs.