Reorganize reliability factors documentation (#225)

* Reorganize reliability factors documentation

* Add reliability factors to User Guide index

Author: AndrewSazonov

docs/docs/user-guide/analysis-workflow/reliability-factors.md

@@ -1,9 +1,8 @@
 ---
 title: Reliability Factors
-icon: material/chart-bell-curve-cumulative
 ---
 
-# :material-chart-bell-curve-cumulative: Reliability Factors
+# Reliability Factors
 
 EasyDiffraction reports several complementary measures of agreement
 between observed and calculated diffraction data. They are ratios

docs/docs/user-guide/index.md

@@ -23,3 +23,6 @@ Here is a brief overview of the User Guide sections:
   EasyDiffraction in Python or Jupyter notebooks.
 - [Analysis Workflow](analysis-workflow/index.md) – Breaks down the data
   analysis pipeline into practical, sequential steps.
+- [Reliability Factors](analysis-workflow/reliability-factors.md) –
+  Defines the equations and interpretation of the reported fit-quality
+  metrics.

docs/mkdocs.yml

@@ -222,8 +222,8 @@ nav:
           - Structure: user-guide/analysis-workflow/model.md
           - Experiment: user-guide/analysis-workflow/experiment.md
           - Analysis: user-guide/analysis-workflow/analysis.md
-          - Reliability Factors: user-guide/analysis-workflow/reliability-factors.md
           - Report: user-guide/analysis-workflow/report.md
+      - Reliability Factors: user-guide/analysis-workflow/reliability-factors.md
   - Tutorials:
       - Tutorials: tutorials/index.md
       - Getting Started: