diff --git a/M-doc/Error-Identifiers.html b/M-doc/Error-Identifiers.html
index 2daf055..0efd630 100644
--- a/M-doc/Error-Identifiers.html
+++ b/M-doc/Error-Identifiers.html
@@ -1,11 +1,10 @@
-<h1 id="error-and-warning-identifiers">Error and Warning Identifiers</h1>
+<h1 id="janklab-error-and-warning-identifiers">Janklab Error and Warning Identifiers</h1>
 
 <h2 id="error-identifiers">Error Identifiers</h2>
 
 <ul>
-  <li>jl:InvalidInput</li>
-  <li>jl:BadOperation</li>
+  <li><code class="highlighter-rouge">jl:InvalidInput</code> - Used when the input to a function is invalid or corrupt.</li>
+  <li><code class="highlighter-rouge">jl:BadOperation</code> - Used when an operation or function is called at the wrong time or in the wrong context.</li>
 </ul>
 
 <h2 id="warning-identifiers">Warning identifiers</h2>
-
diff --git a/M-doc/Error-Identifiers.md b/M-doc/Error-Identifiers.md
index f6e05fc..84f43aa 100644
--- a/M-doc/Error-Identifiers.md
+++ b/M-doc/Error-Identifiers.md
@@ -1,10 +1,8 @@
-Error and Warning Identifiers
-==============================
+# Janklab Error and Warning Identifiers
 
-##  Error Identifiers
+## Error Identifiers
 
-* jl:InvalidInput
-* jl:BadOperation
-
-##  Warning identifiers
+* `jl:InvalidInput` - Used when the input to a function is invalid or corrupt.
+* `jl:BadOperation` - Used when an operation or function is called at the wrong time or in the wrong context.
 
+## Warning identifiers
diff --git a/M-doc/feed.xml b/M-doc/feed.xml
index 073ae0e..e7be3df 100644
--- a/M-doc/feed.xml
+++ b/M-doc/feed.xml
@@ -1 +1 @@
-<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom" ><generator uri="https://jekyllrb.com/" version="4.0.0">Jekyll</generator><link href="/feed.xml" rel="self" type="application/atom+xml" /><link href="/" rel="alternate" type="text/html" /><updated>2020-01-22T10:53:19-05:00</updated><id>/feed.xml</id><title type="html">Janklab</title><subtitle>Documentation for the Janklab Matlab Toolbox</subtitle></feed>
\ No newline at end of file
+<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom" ><generator uri="https://jekyllrb.com/" version="4.0.0">Jekyll</generator><link href="/feed.xml" rel="self" type="application/atom+xml" /><link href="/" rel="alternate" type="text/html" /><updated>2020-01-22T10:58:50-05:00</updated><id>/feed.xml</id><title type="html">Janklab</title><subtitle>Documentation for the Janklab Matlab Toolbox</subtitle></feed>
\ No newline at end of file
diff --git a/doc/Error-Identifiers.md b/doc/Error-Identifiers.md
index f6e05fc..84f43aa 100644
--- a/doc/Error-Identifiers.md
+++ b/doc/Error-Identifiers.md
@@ -1,10 +1,8 @@
-Error and Warning Identifiers
-==============================
+# Janklab Error and Warning Identifiers
 
-##  Error Identifiers
+## Error Identifiers
 
-* jl:InvalidInput
-* jl:BadOperation
-
-##  Warning identifiers
+* `jl:InvalidInput` - Used when the input to a function is invalid or corrupt.
+* `jl:BadOperation` - Used when an operation or function is called at the wrong time or in the wrong context.
 
+## Warning identifiers