What does these two icons signify ? <> & *≡ ?*

Kubernetes
#1

satheesh:
what does these two icons signify ? <> & ≡ ?
image.png

#2

Tanumoy Ghosh:
Guessing if --- denotes main-topic and &lt;&gt; denotes sub-topic

#3

Mumshad Mannambeth:
The first one is text content. The second one is lab content.