Add taxonomy

README.md

@@ -2,40 +2,57 @@
 
 A collection of smart contract vulnerabilities along with prevention methods
 
-- [Insufficient Gas Griefing](./vulnerabilities/insufficient-gas-griefing.md)
-- [Reentrancy](./vulnerabilities/reentrancy.md)
+## Access Control
+
+- [Authorization Through tx.origin](./vulnerabilities/authorization-txorigin.md)
+- [Insufficient Access Control](./vulnerabilities/insufficient-access-control.md)
+- [Delegatecall to Untrusted Callee](./vulnerabilities/delegatecall-untrusted-callee.md)
+- [Signature Malleability](./vulnerabilities/signature-malleability.md)
+- [Missing Protection against Signature Replay Attacks](./vulnerabilities/missing-protection-signature-replay.md)
+
+## Math
+
 - [Integer Overflow and Underflow](./vulnerabilities/overflow-underflow.md)
+- [Off-By-One](./vulnerabilities/off-by-one.md)
+- [Lack of Precision](./vulnerabilities/lack-of-precision.md)
+
+## Control Flow
+
+- [Reentrancy](./vulnerabilities/reentrancy.md)
+- [DoS with Block Gas Limit](./vulnerabilities/dos-gas-limit.md)
+- [DoS with (Unexpected) revert](./vulnerabilities/dos-revert.md)
+- [Using `msg.value` in a Loop](./vulnerabilities/msgvalue-loop.md)
+- [Transaction-Ordering Dependence](./vulnerabilities/transaction-ordering-dependence.md)
+- [Insufficient Gas Griefing](./vulnerabilities/insufficient-gas-griefing.md)
+
+## Data Handling
+
+- [Unchecked Return Value](./vulnerabilities/unchecked-return-values.md)
+- [Write to Arbitrary Storage Location](./vulnerabilities/arbitrary-storage-location.md)
+- [Unbounded Return Data](./vulnerabilities/unbounded-return-data.md)
+- [Uninitialized Storage Pointer](./vulnerabilities/uninitialized-storage-pointer.md)
+- [Unexpected `ecrecover` null address](./vulnerabilities/unexpected-ecrecover-null-address.md)
+
+## Unsafe Logic
+
+- [Weak Sources of Randomness from Chain Attributes](./vulnerabilities/weak-sources-randomness.md)
+- [Hash Collision when using abi.encodePacked() with Multiple Variable-Length Arguments](./vulnerabilities/hash-collision.md)
 - [Timestamp Dependence](./vulnerabilities/timestamp-dependence.md)
-- [Authorization Through tx.origin](./vulnerabilities/authorization-txorigin.md)
-- [Floating Pragma](./vulnerabilities/floating-pragma.md)
-- [Outdated Compiler Version](./vulnerabilities/outdated-compiler-version.md)
 - [Unsafe Low-Level Call](./vulnerabilities/unsafe-low-level-call.md)
-- [Unchecked Return Value](./vulnerabilities/unchecked-return-values.md)
 - [Unsupported Opcodes](./vulnerabilities/unsupported-opcodes.md)
-- [Uninitialized Storage Pointer](./vulnerabilities/uninitialized-storage-pointer.md)
-- [Assert Violation](./vulnerabilities/assert-violation.md)
+- [Unencrypted Private Data On-Chain](./vulnerabilities/unencrypted-private-data-on-chain.md)
+- [Asserting Contract from Code Size](./vulnerabilities/asserting-contract-from-code-size.md)
+
+## Code Quality
+
+- [Floating Pragma](./vulnerabilities/floating-pragma.md)
+- [Outdated Compiler Version](./vulnerabilities/outdated-compiler-version.md)
 - [Use of Deprecated Functions](./vulnerabilities/use-of-deprecated-functions.md)
-- [Delegatecall to Untrusted Callee](./vulnerabilities/delegatecall-untrusted-callee.md)
-- [Signature Malleability](./vulnerabilities/signature-malleability.md)
 - [Incorrect Constructor Name](./vulnerabilities/incorrect-constructor.md)
 - [Shadowing State Variables](./vulnerabilities/shadowing-state-variables.md)
-- [Weak Sources of Randomness from Chain Attributes](./vulnerabilities/weak-sources-randomness.md)
-- [Missing Protection against Signature Replay Attacks](./vulnerabilities/missing-protection-signature-replay.md)
-- [Requirement Validation](./vulnerabilities/requirement-violation.md)
-- [Write to Arbitrary Storage Location](./vulnerabilities/arbitrary-storage-location.md)
-- [Hash Collision when using abi.encodePacked() with Multiple Variable-Length Arguments](./vulnerabilities/hash-collision.md)
 - [Incorrect Inheritance Order](./vulnerabilities/incorrect-inheritance-order.md)
 - [Presence of Unused Variables](./vulnerabilities/unused-variables.md)
-- [Unencrypted Private Data On-Chain](./vulnerabilities/unencrypted-private-data-on-chain.md)
-- [Inadherence to Standards](./vulnerabilities/inadherence-to-standards.md)
-- [Asserting Contract from Code Size](./vulnerabilities/asserting-contract-from-code-size.md)
-- [Transaction-Ordering Dependence](./vulnerabilities/transaction-ordering-dependence.md)
-- [DoS with Block Gas Limit](./vulnerabilities/dos-gas-limit.md)
-- [DoS with (Unexpected) revert](./vulnerabilities/dos-revert.md)
-- [Unexpected `ecrecover` null address](./vulnerabilities/unexpected-ecrecover-null-address.md)
 - [Default Visibility](./vulnerabilities/default-visibility.md)
-- [Insufficient Access Control](./vulnerabilities/insufficient-access-control.md)
-- [Off-By-One](./vulnerabilities/off-by-one.md)
-- [Lack of Precision](./vulnerabilities/lack-of-precision.md)
-- [Unbounded Return Data](./vulnerabilities/unbounded-return-data.md)
-- [Using `msg.value` in a Loop](./vulnerabilities/msgvalue-loop.md)
+- [Inadherence to Standards](./vulnerabilities/inadherence-to-standards.md)
+- [Assert Violation](./vulnerabilities/assert-violation.md)
+- [Requirement Violation](./vulnerabilities/requirement-violation.md)