diff --git a/src/core/config/Categories.json b/src/core/config/Categories.json
index ebfa583f..e0bb61c8 100755
--- a/src/core/config/Categories.json
+++ b/src/core/config/Categories.json
@@ -366,10 +366,6 @@
             "Remove EXIF",
             "Extract EXIF",
             "Split Colour Channels",
-            "Hex Density chart",
-            "Scatter chart",
-            "Series chart",
-            "Heatmap chart",
             "Rotate Image",
             "Resize Image",
             "Blur Image",
@@ -382,7 +378,11 @@
             "Image Filter",
             "Contain Image",
             "Cover Image",
-            "Image Hue/Saturation/Lightness"
+            "Image Hue/Saturation/Lightness",
+            "Hex Density chart",
+            "Scatter chart",
+            "Series chart",
+            "Heatmap chart"
         ]
     },
     {
@@ -399,6 +399,7 @@
             "Generate QR Code",
             "Parse QR Code",
             "Haversine distance",
+            "HTML To Text",
             "Generate Lorem Ipsum",
             "Numberwang",
             "XKCD Random Number"
diff --git a/src/core/lib/Charts.mjs b/src/core/lib/Charts.mjs
index fa3e5137..2bb40b61 100644
--- a/src/core/lib/Charts.mjs
+++ b/src/core/lib/Charts.mjs
@@ -7,7 +7,7 @@
 
 import OperationError from "../errors/OperationError";
 
- /**
+/**
  * @constant
  * @default
  */
@@ -40,6 +40,7 @@ export const COLOURS = {
  * @param {string} recordDelimiter
  * @param {string} fieldDelimiter
  * @param {boolean} columnHeadingsAreIncluded - whether we should skip the first record
+ * @param {number} length
  * @returns {Object[]}
  */
 export function getValues(input, recordDelimiter, fieldDelimiter, columnHeadingsAreIncluded, length) {
@@ -58,7 +59,7 @@ export function getValues(input, recordDelimiter, fieldDelimiter, columnHeadings
                 values.push(split);
             }
         });
-    return { headings, values};
+    return { headings, values };
 }
 
 
@@ -74,7 +75,8 @@ export function getValues(input, recordDelimiter, fieldDelimiter, columnHeadings
 export function getScatterValues(input, recordDelimiter, fieldDelimiter, columnHeadingsAreIncluded) {
     let { headings, values } = getValues(
         input,
-        recordDelimiter, fieldDelimiter,
+        recordDelimiter,
+        fieldDelimiter,
         columnHeadingsAreIncluded,
         2
     );
@@ -96,6 +98,7 @@ export function getScatterValues(input, recordDelimiter, fieldDelimiter, columnH
     return { headings, values };
 }
 
+
 /**
  * Gets values from input for a scatter plot with colour from the third column.
  *
diff --git a/src/core/operations/HTMLToText.mjs b/src/core/operations/HTMLToText.mjs
index a47ffc46..ac17a78f 100644
--- a/src/core/operations/HTMLToText.mjs
+++ b/src/core/operations/HTMLToText.mjs
@@ -20,7 +20,7 @@ class HTMLToText extends Operation {
 
         this.name = "HTML To Text";
         this.module = "Default";
-        this.description = "Converts a HTML ouput from an operation to a readable string instead of being rendered in the DOM.";
+        this.description = "Converts an HTML output from an operation to a readable string instead of being rendered in the DOM.";
         this.infoURL = "";
         this.inputType = "html";
         this.outputType = "string";
diff --git a/src/core/operations/HeatmapChart.mjs b/src/core/operations/HeatmapChart.mjs
index 4cde1f30..f04b6881 100644
--- a/src/core/operations/HeatmapChart.mjs
+++ b/src/core/operations/HeatmapChart.mjs
@@ -9,7 +9,6 @@ import * as d3temp from "d3";
 import * as nodomtemp from "nodom";
 import { getScatterValues, RECORD_DELIMITER_OPTIONS, COLOURS, FIELD_DELIMITER_OPTIONS } from "../lib/Charts";
 
-
 import Operation from "../Operation";
 import OperationError from "../errors/OperationError";
 import Utils from "../Utils";
diff --git a/src/core/operations/JavaScriptParser.mjs b/src/core/operations/JavaScriptParser.mjs
index 40ee7a57..61d7cf50 100644
--- a/src/core/operations/JavaScriptParser.mjs
+++ b/src/core/operations/JavaScriptParser.mjs
@@ -21,7 +21,7 @@ class JavaScriptParser extends Operation {
         this.name = "JavaScript Parser";
         this.module = "Code";
         this.description = "Returns an Abstract Syntax Tree for valid JavaScript code.";
-        this.infoURL = "https://en.wikipedia.org/wiki/Abstract_syntax_tree";
+        this.infoURL = "https://wikipedia.org/wiki/Abstract_syntax_tree";
         this.inputType = "string";
         this.outputType = "string";
         this.args = [
diff --git a/src/core/operations/PEMToHex.mjs b/src/core/operations/PEMToHex.mjs
index a2c989fe..580b1028 100644
--- a/src/core/operations/PEMToHex.mjs
+++ b/src/core/operations/PEMToHex.mjs
@@ -21,7 +21,7 @@ class PEMToHex extends Operation {
         this.name = "PEM to Hex";
         this.module = "PublicKey";
         this.description = "Converts PEM (Privacy Enhanced Mail) format to a hexadecimal DER (Distinguished Encoding Rules) string.";
-        this.infoURL = "https://en.wikipedia.org/wiki/X.690#DER_encoding";
+        this.infoURL = "https://wikipedia.org/wiki/X.690#DER_encoding";
         this.inputType = "string";
         this.outputType = "string";
         this.args = [];
diff --git a/src/core/operations/ScatterChart.mjs b/src/core/operations/ScatterChart.mjs
index e6d0ec9d..70aeb5ea 100644
--- a/src/core/operations/ScatterChart.mjs
+++ b/src/core/operations/ScatterChart.mjs
@@ -7,7 +7,6 @@
 
 import * as d3temp from "d3";
 import * as nodomtemp from "nodom";
-
 import { getScatterValues, getScatterValuesWithColour, RECORD_DELIMITER_OPTIONS, COLOURS, FIELD_DELIMITER_OPTIONS } from "../lib/Charts";
 
 import Operation from "../Operation";
@@ -30,7 +29,7 @@ class ScatterChart extends Operation {
         this.name = "Scatter chart";
         this.module = "Charts";
         this.description = "Plots two-variable data as single points on a graph.";
-        this.infoURL = "https://en.wikipedia.org/wiki/Scatter_plot";
+        this.infoURL = "https://wikipedia.org/wiki/Scatter_plot";
         this.inputType = "string";
         this.outputType = "html";
         this.args = [