Add LanguageTool (#933)

* add languagetool

* tweak description

* Use containerHttpPort

* rm ports as handle by containerHttpPort

public/v4/apps/languagetool.yml

@@ -0,0 +1,42 @@
+captainVersion: 4
+services:
+    $$cap_appname:
+        image: erikvl87/languagetool:$$cap_version
+        restart: always
+        environment:
+            langtool_languageModel: /ngrams # OPTIONAL: Using ngrams data
+            Java_Xms: $$cap_min_size # OPTIONAL: Setting a minimal Java heap size of 512 mib
+            Java_Xmx: $$cap_max_size # OPTIONAL: Setting a maximum Java heap size of 1 Gib
+            #langtool_pipelinePrewarming: true
+        volumes:
+            - $$cap_appname-data:/ngrams
+        caproverExtra:
+            containerHttpPort: 8010
+caproverOneClickApp:
+    variables:
+        - id: $$cap_version
+          label: LanguageTool Version
+          defaultValue: '6.1'
+          description: Check out their docker page for the valid tags https://hub.docker.com/r/erikvl87/languagetool/tags
+          validRegex: /^([^\s^\/])+$/
+        - label: Minimal heap size
+          description: Setting a minimal Java heap size
+          defaultValue: 512m
+          id: $$cap_min_size
+        - label: Maximum heap size
+          description: Setting a maximum Java heap size
+          defaultValue: 1g
+          id: $$cap_max_size
+    instructions:
+        start: >-
+            LanguageTool is an Open Source proofreading software for English, Spanish, French, German, Portuguese, Polish, Dutch, and more than 20 other languages. It finds many errors that a simple spell checker cannot detect.
+        end: >-
+            You're done! 😄
+
+            You can test your configuration here: http://$$cap_appname.$$cap_root_domain/v2/check?language=en-US&text=my+text
+
+            To configure your LanguageTool client use this link in _other server_ section: http://$$cap_appname.$$cap_root_domain/v2/
+    displayName: 'LanguageTool'
+    isOfficial: false
+    description: Style and Grammar Checker for 25+ Languages.
+    documentation: Taken from https://hub.docker.com/r/erikvl87/languagetool