Fix internal references in mathematical formulation docs

Author: glwagner

docs/src/Formulation.md

@@ -2,31 +2,31 @@
 
 ## Table of Contents
 
-1. [Introduction](#1-introduction)
-2. [Fundamental Assumptions](#2-fundamental-assumptions)
-3. [Working Fluid and Equation of State](#3-working-fluid-and-equation-of-state)
-   - [3.1 Mass Fractions and Notation](#31-mass-fractions-and-notation)
-   - [3.2 Equation of State](#32-equation-of-state)
-4. [Heat Capacities](#4-heat-capacities)
-5. [Latent Heats](#5-latent-heats)
-6. [Internal Energies](#6-internal-energies)
-7. [Enthalpies](#7-enthalpies)
-8. [Moist Static Energy](#8-moist-static-energy)
-9. [Saturation Vapor Pressure](#9-saturation-vapor-pressure)
-10. [Saturation Specific Humidity](#10-saturation-specific-humidity)
-11. [Saturation Adjustment](#11-saturation-adjustment)
-12. [Auxiliary Thermodynamic Functions](#12-auxiliary-thermodynamic-functions)
-    - [12.1 Relative Humidity](#121-relative-humidity)
-    - [12.2 Potential Temperature](#122-potential-temperature)
-    - [12.3 Virtual Temperature and Virtual Potential Temperature](#123-virtual-temperature-and-virtual-potential-temperature)
-    - [12.4 Liquid-Ice Potential Temperature](#124-liquid-ice-potential-temperature)
-    - [12.5 Speed of Sound](#125-speed-of-sound)
-13. [Summary and Implementation Guidelines](#13-summary-and-implementation-guidelines)
-    - [13.1 Key Theoretical Framework](#131-key-theoretical-framework)
-    - [13.2 Core Equations](#132-core-equations)
-    - [13.3 Implementation Strategy](#133-implementation-strategy)
-    - [13.4 Validation and Testing](#134-validation-and-testing)
-    - [13.5 Extensions and Limitations](#135-extensions-and-limitations)
+1. [Introduction](#1.-Introduction)
+2. [Fundamental Assumptions](#2.-Fundamental-Assumptions)
+3. [Working Fluid and Equation of State](#3.-Working-Fluid-and-Equation-of-State)
+   - [3.1 Mass Fractions and Notation](#3.1-Mass-Fractions-and-Notation)
+   - [3.2 Equation of State](#3.2-Equation-of-State)
+4. [Heat Capacities](#4.-Heat-Capacities)
+5. [Latent Heats](#5.-Latent-Heats)
+6. [Internal Energies](#6.-Internal-Energies)
+7. [Enthalpies](#7.-Enthalpies)
+8. [Moist Static Energy](#8.-Moist-Static-Energy)
+9. [Saturation Vapor Pressure](#9.-Saturation-Vapor-Pressure)
+10. [Saturation Specific Humidity](#10.-Saturation-Specific-Humidity)
+11. [Saturation Adjustment](#11.-Saturation-Adjustment)
+12. [Auxiliary Thermodynamic Functions](#12.-Auxiliary-Thermodynamic-Functions)
+    - [12.1 Relative Humidity](#12.1-Relative-Humidity)
+    - [12.2 Potential Temperature](#12.2-Potential-Temperature)
+    - [12.3 Virtual Temperature and Virtual Potential Temperature](#12.3-Virtual-Temperature-and-Virtual-Potential-Temperature)
+    - [12.4 Liquid-Ice Potential Temperature](#12.4-Liquid-Ice-Potential-Temperature)
+    - [12.5 Speed of Sound](#12.5-Speed-of-Sound)
+13. [Summary and Implementation Guidelines](#13.-Summary-and-Implementation-Guidelines)
+    - [13.1 Key Theoretical Framework](#13.1-Key-Theoretical-Framework)
+    - [13.2 Core Equations](#13.2-Core-Equations)
+    - [13.3 Implementation Strategy](#13.3-Implementation-Strategy)
+    - [13.4 Validation and Testing](#13.4-Validation-and-Testing)
+    - [13.5 Extensions and Limitations](#13.5-Extensions-and-Limitations)
 
 !!! note "Cross-References"
     This documentation is closely related to the [API documentation](API.md) which provides detailed function signatures and usage examples. The theoretical framework described here is implemented in the [`Thermodynamics.jl`](https://github.com/CliMA/Thermodynamics.jl) package.