Added more property help docs

app/private/docs/property/skill.md

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+# Skills
+
+Skills represent things the creature can be proficient in. Skills can have their values or behavior modifier by [effects](/docs/property/efffect), and their proficiencies modified by [proficiencies](/docs/property/proficiency).
+
+---
+
+### Name
+
+The name of the skill.
+
+### Variable name
+
+The name used to refer to the skill in calculations and by effects. Must start with a letter and be made up of only letters and numbers without spaces, symbols, or punctiation.
+
+### Ability
+
+The ability score that is the basis for checks made with this skill
+
+### Type
+
+- **Skill** Regular skills like *Athletics*, *Sleight* of Hand
+- **Save** Saving throws like *Strength*, *Charisma*
+- **Check** Checks that aren't skill like *Initiative*
+- **Tool** Tool proficiencies
+- **Weapon** Weapon proficiencies
+- **Armor** Armor proficiencies
+- **Language** Language proficiencies
+- **Utility** Skills that don't show on the charcater sheet but can be used in calculations
+
+### Description
+
+A detailed description of the skill.
+
+Allows [inline calculations](/docs/inline-calculations).
+
+### Tags
+
+See [Tags](/docs/tags)
+
+### Base value
+
+A [computed field](/docs/computed-fields) that determines the starting value of the skill before it is modified by effects and other properties. Multiple properties can set the base value for a given variable name, when this happens the highest base value is chosen, and then all other effects are applied.
+
+### Base proficiency
+
+The starting proficiency of the skill.