docs: Add DEVELOPMENT_LOG.md summarizing all features

DEVELOPMENT_LOG.md

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+# Femcode Development Log
+
+This log details the features implemented and significant changes made to the Femcode programming language.
+
+## Implemented Features & Changes
+
+### 1. Core Language Setup
+- **Description:** Established the foundational lexical analysis, parsing, and interpretation framework for Femcode.
+- **Files Modified:**
+    - `femcode/src/lexer.py`
+    - `femcode/src/parser.py`
+    - `femcode/src/interpreter.py`
+
+### 2. Dictionaries and Property Access
+- **Description:** Added support for creating dictionary (object) data structures and accessing their properties using dot notation.
+- **Keywords/Syntax:** `{}` (dictionary literal), `.` (property access)
+- **Files Modified:**
+    - `femcode/src/lexer.py`
+    - `femcode/src/parser.py`
+    - `femcode/src/interpreter.py`
+    - `femcode/examples/dictionaries.fem`
+
+### 3. Input/Output (`ask` built-in function)
+- **Description:** Introduced a built-in function `ask` to prompt the user for input, enhancing interactivity.
+- **Keywords/Syntax:** `ask(prompt_string)`
+- **Files Modified:**
+    - `femcode/src/interpreter.py`
+    - `femcode/examples/io.fem`
+
+### 4. Built-in Functions (`len`, `type`)
+- **Description:** Added utility built-in functions `len` for getting the length of strings/lists and `type` for determining the type of a value.
+- **Keywords/Syntax:** `len(value)`, `type(value)`
+- **Files Modified:**
+    - `femcode/src/interpreter.py`
+    - `femcode/examples/built_ins.fem`
+
+### 5. `femterpreter` Wrapper Script
+- **Description:** Created a standalone executable wrapper script to run Femcode programs directly from the command line, simplifying execution and removing the need to specify `python3 main.py`.
+- **Files Modified:**
+    - `femcode/femterpreter` (new file)
+    - `femcode/src/main.py`
+
+### 6. Enhanced Data Types
+#### Floating-Point Numbers
+- **Description:** Extended numerical support to include decimal values, allowing for more precise calculations.
+- **Files Modified:**
+    - `femcode/src/lexer.py`
+    - `femcode/src/parser.py`
+
+#### Null/None Type
+- **Description:** Introduced a specific keyword to represent the absence of a value.
+- **Keywords/Syntax:** `Ghosted`
+- **Files Modified:**
+    - `femcode/src/lexer.py`
+    - `femcode/src/parser.py`
+
+### 7. Advanced Control Flow
+#### `for` Loops
+- **Description:** Implemented iteration over sequences (lists and strings), enabling more flexible looping constructs.
+- **Keywords/Syntax:** `Tomgirl` (for loop keyword)
+- **Files Modified:**
+    - `femcode/src/lexer.py`
+    - `femcode/src/parser.py`
+    - `femcode/src/interpreter.py`
+    - `femcode/examples/loops_advanced.fem`
+
+#### `break` and `continue` Statements
+- **Description:** Added statements to provide more granular control over loop execution, allowing early exit or skipping iterations.
+- **Keywords/Syntax:** `Break`, `Continue`
+- **Files Modified:**
+    - `femcode/src/lexer.py`
+    - `femcode/src/parser.py`
+    - `femcode/src/interpreter.py`
+    - `femcode/examples/loops_advanced.fem`
+
+### 8. Error Handling (`try-except`)
+- **Description:** Implemented basic error handling mechanisms to gracefully manage runtime errors and prevent program crashes.
+- **Keywords/Syntax:** `Twink` (try block), `Bimboy` (except block)
+- **Files Modified:**
+    - `femcode/src/lexer.py`
+    - `femcode/src/parser.py`
+    - `femcode/src/interpreter.py`
+    - `femcode/examples/error_handling.fem`
+
+### 9. Syntactic Sugar
+#### Compound Assignment Operators
+- **Description:** Added shorthand operators for common arithmetic assignments, improving code conciseness.
+- **Keywords/Syntax:** `+=`, `-=`, `*=`, `/=`
+- **Files Modified:**
+    - `femcode/src/lexer.py`
+    - `femcode/src/parser.py`
+    - `femcode/src/interpreter.py`
+    - `femcode/examples/syntactic_sugar.fem`
+
+#### Increment/Decrement Operators
+- **Description:** Introduced operators for easily increasing or decreasing numerical variables by one.
+- **Keywords/Syntax:** `++`, `--`
+- **Files Modified:**
+    - `femcode/src/lexer.py`
+    - `femcode/src/parser.py`
+    - `femcode/src/interpreter.py`
+    - `femcode/examples/syntactic_sugar.fem`
+
+### 10. Documentation Updates
+- **Description:** Continuously updated the `README.md` documentation to accurately reflect all new features, syntax, and usage instructions, including the `femterpreter` script.
+- **Files Modified:**
+    - `femcode/docs/README.md`