create notes on thread modelling

git.md

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+---
+author: Alvie Rahman
+date: \today
+title: Git notes
+---
+
+
+# Fix detached head
+
+From https://stackoverflow.com/a/10229202 :
+
+## To Delete Changes
+
+```
+git checkout main
+```
+
+## To Keep Changes
+
+```
+git branch temp
+git checkout main
+git pull . temp
+git branch -D temp
+```

go.md

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+---
+author: Alvie Rahman
+date: \today
+title: Go (golang)
+---
+
+# Getting Up to Speed With Go
+
+Probably the most useful resoure I found was the [Tour of Go](https://tour.golang.org/).
+It's easy to understand and teaches you all you need to know.
+
+# Making a web api
+
+> We need to memorize the `Handler` interface.
+> ```go
+> type Handler interface {
+>     ServerHTTP(ResponseWriter, *Request)
+> }
+> ```
+
+

threat_modelling.md

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+---
+author: Alvie Rahman
+date: \today
+title: Threat Modelling and Designing for Security Notes
+---
+
+# Using STRIDE to Find Threats
+
+> STRIDE is a mnemonic for things that go wrong in security
+
+- **Spoofing** is pretending to be something or someone you're not
+- **Tampering** is modifying something you're not supposed to
+- **Repudiation** is means claiming you didn't do something, regardless of whether you did or not
+- **Information Disclosure** is about exposing information to people who are not authorized to see
+  it
+- **Denial of Service** are attacks designed to prevent a system from providing service, including
+  by crashing it, making it unusably slow, or filling all its storage
+- **Elevation of Privilege** is when a program or user is technically able to do things that they're
+  not supposed to do