docs: fix typos and update -n CLI option documentation (#836)

Small cleanup PR:

## Typo fixes

- `internal/re.js`: "numberic" → "numeric" (3 occurrences)
- `functions/diff.js`: "preleases" → "prereleases"
- `test/ranges/min-version.js`: "Carot" → "Caret"
- `ranges/subset.js`: "GT.semver" → "LT.semver" (comment was in the LT
section)

## Documentation

- Update README `-n` option to match the CLI help text (documents the
`false` option to omit the prerelease number)

Author: mldangelo

README.md

@@ -110,8 +110,9 @@ Options:
 -l --loose
         Interpret versions and ranges loosely
 
--n <0|1>
-        This is the base to be used for the prerelease identifier.
+-n <0|1|false>
+        Base number for prerelease identifier (default: 0).
+        Use false to omit the number altogether.
 
 -p --include-prerelease
         Always include prerelease versions in range matching

functions/diff.js

@@ -53,7 +53,7 @@ const diff = (version1, version2) => {
     return prefix + 'patch'
   }
 
-  // high and low are preleases
+  // high and low are prereleases
   return 'prerelease'
 }
 

internal/re.js

@@ -78,8 +78,8 @@ createToken('MAINVERSIONLOOSE', `(${src[t.NUMERICIDENTIFIERLOOSE]})\\.` +
 
 // ## Pre-release Version Identifier
 // A numeric identifier, or a non-numeric identifier.
-// Non-numberic identifiers include numberic identifiers but can be longer.
-// Therefore non-numberic identifiers must go first.
+// Non-numeric identifiers include numeric identifiers but can be longer.
+// Therefore non-numeric identifiers must go first.
 
 createToken('PRERELEASEIDENTIFIER', `(?:${src[t.NONNUMERICIDENTIFIER]
 }|${src[t.NUMERICIDENTIFIER]})`)

ranges/subset.js

@@ -38,7 +38,7 @@ const compare = require('../functions/compare.js')
 // - If LT
 //   - If LT.semver is greater than any < or <= comp in C, return false
 //   - If LT is <=, and LT.semver does not satisfy every C, return false
-//   - If GT.semver has a prerelease, and not in prerelease mode
+//   - If LT.semver has a prerelease, and not in prerelease mode
 //     - If no C has a prerelease and the LT.semver tuple, return false
 // - Else return true
 

test/ranges/min-version.js

@@ -31,7 +31,7 @@ test('minimum version in range tests', (t) => {
     ['~1.1.1-beta', '1.1.1-beta'],
     ['~1.1.1 || >=2', '1.1.1'],
 
-    // Carot
+    // Caret
     ['^1.1.1', '1.1.1'],
     ['^1.1.1-beta', '1.1.1-beta'],
     ['^1.1.1 || >=2', '1.1.1'],