Minor fixes. (#798)

Fixed README.md. Added missing tags.
Fixed function names in comments in baked_in.go.
Fixed error strings in validator_instance.go (should not be
capitalized).
Fixed twice imported assert package in validator_test.go.

Author: Nikachev

README.md

@@ -100,7 +100,7 @@ Baked-in Validations
 | hostname_rfc1123 | Hostname RFC 1123 |
 | ip | Internet Protocol Address IP |
 | ip4_addr | Internet Protocol Address IPv4 |
-| ip6_addr |Internet Protocol Address IPv6 |
+| ip6_addr | Internet Protocol Address IPv6 |
 | ip_addr | Internet Protocol Address IP |
 | ipv4 | Internet Protocol Address IPv4 |
 | ipv6 | Internet Protocol Address IPv6 |
@@ -129,12 +129,17 @@ Baked-in Validations
 | contains | Contains |
 | containsany | Contains Any |
 | containsrune | Contains Rune |
+| endsnotwith | Ends With |
 | endswith | Ends With |
+| excludes | Excludes |
+| excludesall | Excludes All |
+| excludesrune | Excludes Rune |
 | lowercase | Lowercase |
 | multibyte | Multi-Byte Characters |
 | number | NOT DOCUMENTED IN doc.go |
 | numeric | Numeric |
 | printascii | Printable ASCII |
+| startsnotwith | Starts Not With |
 | startswith | Starts With |
 | uppercase | Uppercase |
 
@@ -143,6 +148,8 @@ Baked-in Validations
 | - | - |
 | base64 | Base64 String |
 | base64url | Base64URL String |
+| bic | Business Identifier Code (ISO 9362) |
+| bcp47_language_tag | Language tag (BCP 47) |
 | btc_addr | Bitcoin Address |
 | btc_addr_bech32 | Bitcoin Bech32 Address (segwit) |
 | datetime | Datetime |
@@ -158,13 +165,20 @@ Baked-in Validations
 | isbn | International Standard Book Number |
 | isbn10 | International Standard Book Number 10 |
 | isbn13 | International Standard Book Number 13 |
+| iso3166_1_alpha2 | Two-letter country code (ISO 3166-1 alpha-2) |
+| iso3166_1_alpha3 | Three-letter country code (ISO 3166-1 alpha-3) |
+| iso3166_1_alpha_numeric | Numeric country code (ISO 3166-1 numeric) |
+| iso3166_2 | Country subdivision code (ISO 3166-2) |
 | json | JSON |
 | jwt | JSON Web Token (JWT) |
 | latitude | Latitude |
 | longitude | Longitude |
+| postcode_iso3166_alpha2 | Postcode |
+| postcode_iso3166_alpha2_field | Postcode |
 | rgb | RGB String |
 | rgba | RGBA String |
 | ssn | Social Security Number SSN |
+| timezone | Timezone |
 | uuid | Universally Unique Identifier UUID |
 | uuid3 | Universally Unique Identifier UUID v3 |
 | uuid3_rfc4122 | Universally Unique Identifier UUID v3 RFC4122 |
@@ -179,7 +193,7 @@ Baked-in Validations
 | - | - |
 | eq | Equals |
 | gt | Greater than|
-| gte |Greater than or equal |
+| gte | Greater than or equal |
 | lt | Less Than |
 | lte | Less Than or Equal |
 | ne | Not Equal |
@@ -188,10 +202,6 @@ Baked-in Validations
 | Tag | Description |
 | - | - |
 | dir | Directory |
-| endswith | Ends With |
-| excludes | Excludes |
-| excludesall | Excludes All |
-| excludesrune | Excludes Rune |
 | file | File path |
 | isdefault | Is Default |
 | len | Length |
@@ -211,6 +221,12 @@ Baked-in Validations
 | excluded_without_all | Excluded Without All |
 | unique | Unique |
 
+#### Aliases:
+| Tag | Description |
+| - | - |
+| iscolor | hexcolor\|rgb\|rgba\|hsl\|hsla |
+| country_code | iso3166_1_alpha2\|iso3166_1_alpha3\|iso3166_1_alpha_numeric |
+
 Benchmarks
 ------
 ###### Run on MacBook Pro (15-inch, 2017) go version go1.10.2 darwin/amd64